As Titan travels around Saturn during its 16-day elliptical orbits, it gets rhythmically squeezed by the gravitational pull of the giant planet — an effect known as tidal flexing. Now, if this cloud-covered moon were mostly composed of rock, the flexing would be in the neighborhood of around 3 feet (1 meter.) But based on measurements…
Tag: science
Curiosity’s “Crazy” Landing
“When people look at it, it looks crazy. It’s a very natural thing. Sometimes when we look at it it looks crazy. It is the result of reason, engineering, thought… but it still looks crazy.” – Adam Steltzner, EDL Engineer On August 5, after nearly 9 months of travel, Mars Science Laboratory (aka Curiosity) will…
Ancient Ice Found in a Frigid Lunar Crater
NASA’s Lunar Reconnaissance Orbiter has found water ice lining a deep crater located on the Moon’s south pole — as much as 22% of the surface material of the crater appears to be composed of ice, NASA and university scientists report.
A Blue Marble Martini – With Extra Ice
This latest portrait of Earth from NASA’s Suomi NPP satellite puts the icy Arctic in the center, showing the ice and clouds that cover our planet’s northern pole. The image you see here was created from data acquired during fifteen orbits of Earth. Read the rest of this article here.
Is Earth Alive?
Proposed by scientists James Lovelock and Lynn Margulis in the 70s, the Gaia theory suggests Earth is a self-supporting singular life form, similar to a cell. The theory claims that, rather than being merely a stage upon which life exists, life — in all forms — works to actively construct an Earthly environment in which it can…
Three Devils, One Image
The HiRISE camera aboard NASA’s Mars Reconnaissance Oribiter captured this image of Mars’ surface, showing the presence of three different dust devils in the same region. Dust devils are common during the springtime on Mars’ northern hemisphere, when increased sunlight heats the surface and causes air to rise rapidly in spinning columns. The image was…
The Curious Central Peaks of Iapetus
The curious, 20-km tall central ridge of Iapetus, a.k.a. the Voyager Mountains Saturn’s 914-mile (1471-km) -wide Iapetus (pronounced eye-AH-pe-tus) has a particularly curious feature: a chain of 20-kilometer (12-mile) high mountains encircling the moon’s equator. On the anti-Saturnian side of Iapetus, the ridge appears to break up, forming distinct, partially bright mountains. The Voyager I…
Take a Look at Titan!
Here’s a great shot of Titan and Saturn acquired by Cassini on May 6, 2012 just after a pass by the haze-covered moon. It’s a color-composite made from images taken in Cassini’s red, green and blue color channels, and the resulting image was color adjusted a bit to appear more “Saturny”.
Symphony of Science: “We Are Star Dust”
Can’t see the video below? Click here. The 15th and latest installment of the awesome Symphony of Science videos is out, and like all those before it it’s a fun, inspirational and educational trip through the cosmos with voiceovers by leading astronomers and physicists. These are great, and if you haven’t seen the others be…
Are You Ready For Saturday’s Supermoon?
Can’t see the video below? Click here. If you think this weekend’s full moon looks larger in the sky than usual, you’re not a lunatic… it IS larger in the sky! 14% larger, to be exact. Why?
NASA: In Pursuit of Light
Can’t see the video below? Click here. Here’s a new video from the folks at NASA’s Goddard Space Flight Center in Greenbelt, MD that will make you fall in love with the Universe…for the first time, or all over again. It’s a good reminder that, even though the shuttles are retired, NASA still has its…
How Big Is The Solar System?
“You may think it’s a long way down the road to the chemist’s, but that’s just peanuts to space.” – Douglas Adams Standard classroom models and textbook illustrations of the Solar System, regardless of how pretty they are, all share one thing in common: they’re wrong. Ok, maybe not wrong, but definitely inaccurate… especially in regards…
Lights in the Dark 