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Rings Discovered Around an Asteroid

Artist's impression of the view from the asteroid Chariklo. Credit: ESO/L. Calçada/Nick Risinger (skysurvey.org)

Artist’s impression of the view from the asteroid Chariklo. Credit: ESO/L. Calçada/Nick Risinger (skysurvey.org)

We all know that Saturn is encircled by a system of rings, and perhaps you also know about the fainter rings around Uranus, Jupiter, and Neptune. But today, ESO astronomers have revealed a surprising discovery: there are also rings surrounding the asteroid 10199 Chariklo, a small, distant world orbiting the Sun far beyond Saturn.

This makes 250-km-wide Chariklo the fifth world ever found to have rings, after the four planets mentioned previously, and, based on the observations, it could also even have its own moon.

“As well as the rings, it’s likely that Chariklo has at least one small moon still waiting to be discovered,” said Felipe Braga-Ribas of the Observatório Nacional/MCTI in Rio de Janeiro who planned the observation campaign and is lead author on the new paper.

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Fastest, Farthest, First: New Horizons Closing in on Pluto


It’s a journey spanning 85 years and billions of miles: humanity’s first-ever encounter with the dwarf planet system of Pluto and Charon, located in the frozen far reaches of our Solar System where our entire planet is a barely-visible pale blue dot — just a “mote of dust suspended in a sunbeam.” Launched in 2006, the New Horizons spacecraft will pass by Pluto in July 2015 and send back images and data in unprecedented detail, 85 years after its discovery. With the flyby just about a year and a half away, the excitement in the space community is rapidly building even now.

The video above is a “teaser” for the event from the Applied Physics Laboratory at Johns Hopkins University — check it out. (Warning: may contain scenes of intense scientific discovery!) Also, watch a longer documentary below on the history of Pluto and the New Horizons mission:
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What Has Curiosity Found on Mars?

……E.T., maybe?? ;)

Kidding aside, the internet science world is abuzz with the anticipation of some big news from the Mars Science Laboratory team, spurring many on Twitter to make up their own amusing suggestions.  (Martian Twinkies??) What that news could be — organic compounds? water ice? methane outgassings? — is still anyone’s guess. But since this IS Mars we’re talking about, any “big news” is of course awaited with bated breath.

Stay tuned for more!

(And if you don’t know the story that inspired the picture above, click here.)

UPDATE: Apparently the NPR article that spurred rumors of big discoveries from Curiosity was a misunderstanding… while data from the rover is “one for the history books,” that pertains to the mission as a whole — not any individual discovery. It was not made entirely clear, but the internet ran with the more exciting option. Another example of why you can’t always believe what you hear. Still, news from the MSL mission will be delivered very soon.

“Rumors and speculation that there are major new findings from the mission at this early stage are incorrect… at this point in the mission, the instruments on the rover have not detected any definitive evidence of Martian organics.” – JPL news release, 29 Nov. 2012

Read more here.

Did Earth Once Have Two Moons?

Our Moon. It lights up our nights, governs our tides and has inspired millions — perhaps billions -– of people throughout history to contemplate its nature, its influence on our lives (if any) and, of course, where it may have come from.

The currently accepted theory is that over four and a half billion years ago our newly-formed planet was impacted by a Mars-sized body, a catastrophic collision that flung molten bits of Earth’s mantle into space and created a ring of debris. This gradually gathered together to create our Moon… but, according to some new models created by researchers at UC Santa Cruz, it may have actually created two moons. But if this is indeed the case, what happened to the other one?

Read more on my article at Discovery News.

When We Left Earth

“It’s tiny out there…it’s inconsequential. It’s ironic that we had come to study the Moon and it was really discovering the Earth.”

– Bill Anders, Apollo 8 astronaut

When We Left Earth is a fantastic six-part series by Discovery Channel that features hours of new footage from NASA and interviews with many of those personally involved in the space program over the past 50 years. It tells the story of our journey into space, from the original Mercury program to the Gemini spacewalks, to the breathtaking lunar missions of Apollo… and then beyond to Skylab and the hardworking shuttles that would open Hubble’s eyes to the Universe and ultimately help create the International Space Station.

It came out in 2010… if you haven’t seen these yet, I suggest you check them out. Narrated by Gary Sinise, they tell a dramatic story of exploration – both of space and our planet and moon, but also of the people who made it all happen through hard work, talent, guts and not a small amount of sheer luck.

Plus the HD footage – especially from the first missions of the 1960s – is really wonderful to watch.

View of Earth from Apollo 8. Credit: NASA

The video above (if you don’t see it click here) is from the episode Landing the Eagle, which goes through the Apollo missions, from the tragedy of Apollo 1 to the first orbit of the Moon achieved by Apollo 8 to the landing of Eagle with Apollo 11. Watching this and hearing the astronauts’ first-hand accounts of what they experienced, as well as the concerns of the controllers on the ground – not to mention the astronauts’ wives! – really puts a human perspective on the incredible achievements that were made.

If anything, I’d hope that shows like this might inspire a new generation to push the boundaries of what we think we can do and what’s safe and comfortable and by doing so, achieve greater things than are thought possible. Those guys did it, and with a heck of a lot less fancy technology.

50 years of space flight…in the first ten we went to the Moon. Where will the next 10, 20, 50 take us? And who will be telling stories like this 50 years from now? That’s entirely up to us.

Buy the series on DVD or Blu-Ray here. It’s also available on Netflix.

30 Years, 133 Launches, 133 Seconds

In honor of the end of NASA’s shuttle program (with only two flights remaining) CNN videographers have assembled a wonderful montage of the 133 launches over the past 30 years and put them together in the video below. Check it out! (There may be a brief advertisement at the beginning…that’s embedded in the CNN video.)

Warming: you may find yourself experiencing stronger emotions than expected.

View on CNN.com

Recycling the Empties


During a shuttle launch, the two white solid rocket boosters (SRB’s) attached to the main orange tank detach first* and fall back to Earth, landing in the Atlantic. These are retrieved by NASA ships and ferried back to be refurbished and refilled for the next mission…a process that requires the efforts of many experienced professionals, to say the least. The video above is the first to be released by NASA of the entire process is high-definition, showing the fall to Earth and retrieval of both SRBs from the Discovery STS-133 launch. Very cool!

Just goes to show that there were a lot more people involved in the shuttle program than astronauts and scientists!

Video: NASA

*The main solid rocket tank detaches from the shuttle at a later point and is mostly burnt up in the atmosphere during its fall. It is not reused. For a video of the May 2010 STS-132 shuttle launch, showing a booster’s-eye-view of the entire event, click here.

Read on LightsInTheDark.com

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