Did you watch Meteorite Men last week? If not, you can probably catch a repeat. It is a new series, airing 9pm ET/PT Wednesday nights, on the Science Channel about two guys who search for meteorites. Check your local listings for times. (Photo cheekily snapped from their site. Copyright aerolite meteorites.)
I learned about it from Bob Melisso, my producer/filmmaker friend (and occasional collaborator: see here, here and here) who made the pilot and is the supervising producer for the series. From the website: Continue reading ‘Meteorite Men!’
My friend, The Universe co-contributor, and colleague Amy Mainzer (JPL) is rubbing gloved hands together in the chilly night air up at Vandenberg. Well, ok, if not this very moment, she probably will be at various points this evening and into the wee hours of the morning. The launch pad for WISE (the mission on which Amy is deputy project scientist) is set, and everything is ready to go! See my earlier post about what Continue reading ‘Imminent Launch’
Once again I’m excited about a new piece of machinery. This time it is a space mission again. There have been several remarkable missions launched (many in very recent years), doing all sorts of excellent science, helping us discover all sorts of things about our universe, near and far, young and old. I’ve spoken about (and sometimes followed live) the launches of some of them here on the blog, or spoken about the science results they’ve helped produce. See the graphic on the right for some of them.
Well, very soon (possibly as early as December 9th), there will be the launch of WISE, the Wide-field Infrared Survey Explorer! I learned from my friend, colleague and fellow presenter on History Channel’s The Universe, JPL’s Amy Mainzer, who is a senior scientist and the deputy project scientist on the WISE mission, that they made a series of exciting videos about WISE for you to learn about the science that WISE will do and how it will go about Continue reading ‘Get Wise to WISE’
Another meteor shower is almost upon us. Next week it is the turn of the Leonids. Now, as the name implies, these have their apparent origin in the constellation Leo. So how visible it will be for you, if you live in an urban area, might depend upon Leo’s position in the sky relative to your local bright city lights at the time of viewing. But it is worth trying. Look for a public park, rooftop, or other open area of sky. Parks can be better for pulling you away from some of the immediate lights, and then sit still and look at one patch of sky steadily for a while (generally in the right direction!) To get Continue reading ‘The Leonids are almost here!’
Aha! So you were thinking the mission last month was a bit of a failure, right? Because there was no big splash (literally) of a plume for the press to gush about? I’m talking about the October LCROSS mission on October 9th that smashed an impactor onto the moon’s surface (at the Cabeus crater) to create a cloud of dust for analysis. I remember people thinking, encouraged by various reports, that the event was rather a damp squib, since it did not produce a Hollywood-style flash and plume. See an NPR report on the mission here from back then.
Well, science is known for being able to carry on steadily even if there are no overt special effects and a catchy soundtrack. Today, NASA announced that their analysis of the data produced from measuring the dust cloud’s properties has shown very definite signs of water (confirming and strengthening the results accumulated by other missions (India’s Chandrayaan-1 and NASA’s Deep Impact and Cassini probes) that I Continue reading ‘Wet Moon’
Well, ok… Boom is not quite accurate, but the idea is that there will be ten kinds of blasts/explosions/major_energetic_events discussed tonight on the History Channel’s The Universe:
The Universe is full of explosions that both create and destroy. The Chicxulub impact on the Yucatan peninsula, which may have wiped out the dinosaurs 65 million years ago, was two million times more powerful than the largest nuclear bomb ever detonated on Earth. But guess what? That’s only good enough for the very bottom of the Biggest Blasts top ten list. This episode works its way up through supernova explosions and gamma ray bursts all the way to the blast that started it all–the Big Bang.
Sounds good doesn’t it? There’s a lot of good people contributing again, so I know it’ll have some good material and explanations.
In addition, I’m reasonably confident I play a role in this one…This one was a blast (sorry) to film. You saw some posts earlier reporting on some of the filming. Assuming they used the material I did with them, you’ll get to see why I was at the Continue reading ‘Ten Things That Go Boom!’
Forgot to report on this email exchange from last semester:
From one of the staff in the physics office:
Subject: 499 Syllabus
Date: Thu, 09 Jul 2009 14:01:38 -0700
From: Beverly
To: Clifford V. Johnson
I was reading the syllabus you sent over for the 499 class. I am not sure if this is a type-o but in the Extra Books section it reads “/Black *_hoes_* and Time Warps: Einstein’s outrageous Legacy/” should it read
“/Black *_holes_* and Time Warps: Einstein’s outrageous Legacy/”.
As a follow up to my earlier moon post of the day, here’s a link to the (excellent) Police singing the excellent “Walking on the Moon”. Seems to fit somewhat with the occasion. No embedding, sadly, so you’ll have to come back here to finish your reading. Click on the picture. Enjoy!
Well, it can’t have escaped your attention. I imagine that whatever news sources you use are full of stories about today being the 40th anniversary of the first landing on the moon. (Well, the first by human beings, anyway. )
I won’t be writing a long thoughtful piece reflecting on the matter. Right now, I can’t really think of much to say that has not been said. Perhaps it is just because it is too hot here. I’m not sure.
On the BBC’s Daily Mayo the other day there was a science focus!
Scientists Brian Cox and Jeff Forshaw joined Simon to talk about their new book Why Does ? that looks at Einstein’s famous equation which explores the principles of physics through everyday life. Commander Lee Archambault, currently on a tour of the UK, joined them and spoke about Space Shuttle Mission 119’s recent trip to the International Space Station.
One of the interesting things was that there was a lot of amiable chatter around the science, but hardly any actual explanations. This was particularly marked when Simon tried to get them to explain , and I perked up since it sounded like there was going to be a very clever quick radio soundbite of Relativity and a snappy thought experiment to nail the concept, and I was all ready to be super-impressed by Continue reading ‘Science and Space on Mayo’
I just learned from Phil’s blog that the Galileoscopes I mentioned to you some months back (remember? International Year of Astronomy? Not just Darwin year?) are ready for shipping. There were issues with production at first, but now they are ready. The key issue right now seems to be that they are in danger of having to stop production of these lovely things if they don’t get lots of orders by May 31st. Ack!
So please please consider sending in a order for one or a few. Imagine what a delightfully unusual gift it would make for someone. Either someone you know, or someone you don’t know like a neighbour, your local school, church (yes!) or community center, or… even that special someone who you’d like to get to know - what an icebreaker, eh? Here’s a picture from the site of what a happy owner’ll have after assembling it:
The space shuttle mission launching today (around 2:00pm ET) has a very special task. It is going to take some astronauts up to do some crucial repairs (see story here) on the Hubble Space Telescope. It is the last such mission (Hubble will be retired into the Pacific eventually) and has been long awaited. Please keep your fingers crossed for a successful mission to keep such an important scientific instrument working for another five (or so) years to teach us more about the universe. (Go to the Hubble site here.)
NPR had a rather good piece about the special tools that were designed to allow these repairs to be carried out. The point is that the astronauts are not just swapping out parts or modules that were designed to be swapped out (like you do a light bulb, a shower head, or a shaving foil), but they have to go in and take out things deeper Continue reading ‘The Right Tools for the Job’
I had a lot of fun at this year’s Jet Propulsion Laboratory (JPL)open house. I’m happy to report that there were, once again, lots of people wandering around looking at the displays and demonstrations, asking questions, hanging out, and so forth, and an impressive turnout of JPL staff answering questions and being very enthusiastic about the science (something which is easy to do because it’s such an excellent topic!). I’ve made a video for you that is coming up at the end of this post. (Click on stills for larger views.)
There was the usual huge emphasis on planetary exploration with rovers and robots and so forth - this seems to capture the imagination of everyone, so why not? - but I was more than a little surprised to find virtually no showing for the Planck mission. There was one poster somewhere, but no booth, no model, no description of the truly amazing science that it will do in unlocking more about the origins of the entireContinue reading ‘Yesterday at JPL’
I learned* that the Kepler craft (NASA artist sketch on right - this is the device that will look for “other earths” - see below) is all go to try for launch later today! Extract from an announcement that went around:
On 6 March (EST, 7 March in UTC) there are two opportunities for a launch into the Earth trailing orbit. The first window is at 6 March, 10:49:57 p.m. EST (UTC: 7 March, 03:49:57) and the second window is at 11:17:44 p.m. EST (UTC: 7 March, 04:17:44). If Kepler is not launched tonight there is a another possibility at approximately the same time tomorrow night.
Countdown will begin 3 hours before launch and Kepler separation into Earth trailing solar orbit will take place 3709 sec into flight. First contact after separation is expected 4640 sec into flight.
I noticed that Amy Mainzer is over at the Kennedy Space Center to see the launch. She begins to talk about it here on her (excellent) blog. You might want to check back there in case she does a nice report on it. Check out Phil’s Bad Astronomy blog for more on this too. He says he’ll be tweeting and all. (Yes. Tweeting. There, I have used that word in its recent new context/meaning in a sentence for the first time. I feel a bit silly.)
Bill Stone is quite an engaging speaker, it has to be said. I heard him on the BBC World Service, being interviewed about his hopes and plans to change the way we do things in space. It is a spirited case that he makes, where he deliberately invokes the spirit and the words of Sir Ernest Shackleton and other great explorers going off into the unknown. The audio is here. (If you come to this late, search their archive here.)
Then I checked and sure enough there was a TED talk from him last year. See here. You can see him in action as well, although the BBC interview is complementary Continue reading ‘From the Earth to the Moon?’
Sheril reminds us that it is 40 years to the day that this photograph was taken (by astronaut William Anders during the Apollo 8 mission), and invites us to ponder how much has happened to and on it over the last 40, and how it might be in 2048. A good end of year meditation.
Happy Holidays to all!
[Update: A very good NPR piece on the mission and the photo is here, with audio and partial transcript.]
Last week the Guardian did a special podcast about Barack Obama’s science policies, and the challenges that lie ahead for the new administration. It’s actually rather good (at least the parts I’ve heard so far - I’m listening to it in pieces while travelling) and I recommend it. They have lots of guests, many of whom you’ve maybe heard of (Lesley Stone, Martin Rees, Diana Liverman, Chris Mason, P Z Myers, Lawrence Krauss, Martin Barstow), and the issue is explored from several angles, from climate change, through stem cells, to the space program.
As you may have heard, the Phoenix craft on Mars (remember? seven minutes of terror?) which had already been running beyond its design lifetime, has probably sent its final message from Mars. There is not enough daily solar energy (now that it is Winter) coming in to support its energy needs.
I’ve been running around so much today I forgot to actually mention the event for which I’ll be acting as host tonight, here at USC. This is how I quickly described it to my colleagues, but bear in mind that it is open to all:
I’d like to remind you one last time about the Apollo Visions and Voices event today. Whether it interests you or not, please encourage your students to go. It is the College Dean’s V+V event for the semester, and was chosen to have a focus that would attract science and engineering students and faculty to sit with our friends and colleagues from the arts and humanities. It is at 7:30 pm in Bovard, with a reception at the end. I think that it will be very interesting and enjoyable.
This is quite remarkable. There’s actually been an image (see left) taken of a planet orbiting another star. There are hundreds of known extrasolar planets in orbit around other stars (see lots of earlier posts), and evidence for them has been indirect, since they are too tiny and too dim (having no light of their own) to image directly. You can learn of their existence by their effects on their parent star, and/or on the light it casts. (The image left is courtesy of the Gemini Observatory. The University of Toronto scientists used the Gemini North telescope on Mauna Kea in Hawaii and its adaptive optics technology to make the image.)
Well, the new orbiting instrument, GLAST (Gamma-ray Large Area Space Telescope - launched June 11th this year) has passed all its tests with flying colours, apparently, and is working well. NASA has now renamed the craft the Fermi Gamma-ray Space Telescope, after Enrico Fermi. There’s a press release here.
The craft is a wonderful combination of the fields of particle physics, astrophysics and cosmology, and will teach us so much about the universe (such as the nature of dark matter), and so it is exciting to hear that it all on track.
Excitingly, they’ve also released images of the early results of the observations, and you can read more about them in the press release too. Here’s a sky map made from the observations.
This all-sky view from GLAST reveals bright emission in the plane of the Milky Way (center), bright pulsars and super-massive black holes. Credit: NASA/DOE/International LAT Team.
Today is the 50th anniversary of the day the USA replied to the world-changing Sputnik launch by the USSR almost four months earlier (see my post), as well as Sputnik 2 (carrying the dog Laika) a month after. In some sense, the space race began in earnest with this launch of the craft called Explorer.
It’s not going to be naked-eye visible, but give a thought tonight to the 250 metre asteroid (2007 tu24) that is going to swing by close to earth tonight! Or, if you have a “modest” telescope, go and look at it. It’s going to scrape by at 1.4 times the distance of the moon. That’s pretty close, by astronomical standards, and gives scientists a chance to see a near earth object rather more closely than usual. From the Continue reading ‘Near Enough’
“Inside” meaning the inner part of the Solar System. “Messages” meaning the new pictures from MESSENGER spacecraft.
MESSENGER is short for MErcury Surface, Space ENvironment, GEochemistry, and Ranging. Now you and I know that they spent a bit of time coming up with the unpacking of the name, wanting of course to have the name MESSENGER because that’s what the Mercury of mythology was - the messenger of the Gods, among his other duties. Nice. However I’d have been really impressed if they’d managed to call it QUICKSILVER, and found a way to unpack that - any takers?
Anyway, I digress. In more news showing the triumph of the wisdom of relatively cheap unmanned exploratory craft, MESSENGER sent some wonderful pictures of Mercury this week, along with lots of other scientific data that will help us learn a great deal about the innermost planet. Here’s the one that’s been going around a lot (click for impressive larger version):
A little over a month from now, Mars might be hit by an asteroid! There’s a 1 in 75 chance (due to uncertainties about the exact trajectory), according to the people tracking the object’s progress right now. The 50 metre wide object is due to pass within 300000 miles of Mars at about 6 a.m. EST (3 a.m. PST) on Jan. 30, 2008. Quoting quite a bit from the press release from JPL/NASA:
Today’s the 50th anniversary of an event that might be thought of as an extreme way of nationally getting really serious about Science education. Sputnik was launched by the USSR. The little pioneering satellite passed overhead several times a day, sending a powerful beeping signal over a radio channel. America immediately became scared, worried and paranoid and essentially declared it a national emergency to respond by a focus on better education in some science and technical subjects. Songs were written. The entire culture was changed.
Fear and paranoia are certainly not the ways I’d like to see us come back to recognizing the value and urgency of improved science education (not the least Continue reading ‘A Kick From Sputnik’
Ok. So I want to make this post timely, but it means that it will begin to let a cat out of the bag. We’ll see how much I can save for a later post as I write1.
So, as I walked to the subway this morning (yes, they have one in LA), I went through my little checklist of things I take on self-assigned assignments of this sort.
Notebook for scribbling: Check
Pen for scribbling: Check
Camera: Check
Phone (now with decent back-up camera): Check
Spare battery for camera: Check
Decent excuse/reason for being spectacularly late: Check
Water: Check
Good footwear for endless walking back and forth: Check
By now you get it. I’m either doing one of my parade reports, or perhaps a street fair/party, museum exhibit, or some random science fair, object or installation or other. Yes, but which? Well, apparently I was going to the future:
Well, I’m reporting on this as part of a longer blog post (update: it is here) about an event I attended today at the Los Angeles Convention Center, but since it’ll take me a while to finish, and it will be buried in all the other stuff (including pictures and so forth), I’ll snip out a bit of what I’m saying there to inform you of this interesting development:
So what were some of the big ticket items, at least in terms of where all the regular press were? Well, the biggest was of course the X prize. There was a long movie with lots of stuff about space, and dreams about our future in space, and animations and things of roving robots on planetary surfaces, and all that good stuff…. very nice, I thought, and began to wander off…. and then there was a round of applause from everyone and I came back as a voice announced “The Google Lunar X Prize”, and various other people showed up on the stage (like one of the founders of Google - forgot his name, and later, good ol’ Buzz Aldrin, who seems to be required at these sorts of events). The Google co-founder guy began his speech by acknowledging all the Google engineers… and announcing that they’d just launched a new version of the moon. Applause. (I’m pretty sure that they mean Google Moon, by the way.)
Well, maybe on the next flyby. Flyby page here. AP (via Yahoo) story by Alicia Chang here. Interesting extracts:
The international Cassini spacecraft went into safe mode this week after successfully passing over a Saturn moon that was the mysterious destination of a deep-space faring astronaut in Arthur C. Clarke’s novel “2001: A Space Odyssey.”
Let’s talk about aliens. I don’t mean people coming across the borders of whatever your country happens to be (although I did giggle a decade ago when I was given an official “alien number” by the powers that be back then - though I always regretted bypassing the “alien with extraordinary ability” status that the O1 visa gives you), I mean living creatures from beyond planet earth (it’s also interesting to consider the possibility that the seeds for life on earth may also have come from elsewhere).
It’s one of my favourite topics to consider, which is why I like to follow a lot of the remarkable things we are learning about our neighbouring planets (and other bodies like moons, asteroids, comets, and, yes minor planets like our old friend Pluto), and of course the ever-increasing variety of extra-solar planets (the ones we are discovering orbiting other stars). Overall, it gives one the sense that it is overwhelmingly likely that we are not alone (to use the tired old phrase), which to me is tremendously exciting.
I think we’ll find lots of compelling evidence that there’s lots of simple life on other bodies relatively soon, and I think that when people on the street hear of this, they’ll find it interesting enough. But I suspect that this will completely different to an Continue reading ‘They’re Out There (Probably)’
Did you watch Meteorite Men last week? If not, you can probably catch a repeat. It is a new series, airing 9pm ET/PT Wednesday nights, on the Science Channel about two guys who search for meteorites. Check your local listings for times. (Photo cheekily snapped from their site. Copyright aerolite meteorites.)
Another meteor shower is almost upon us. Next week it is the turn of the Leonids. Now, as the name implies, these have their apparent origin in the constellation Leo. So how visible it will be for you, if you live in an urban area, might depend upon Leo’s position in the sky relative to your local bright city lights at the time of viewing. But it is worth trying. Look for a public park, rooftop, or other open area of sky. Parks can be better for pulling you away from some of the immediate lights, and then sit still and look at one patch of sky steadily for a while (generally in the right direction!) To get 
)
? that looks at Einstein’s famous equation which explores the principles of physics through everyday life. Commander Lee Archambault, currently on a tour of the UK, joined them and spoke about Space Shuttle Mission 119’s recent trip to the International Space Station.
As you may have heard, the Phoenix craft on Mars (remember? 
Drat.
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