Logo IMG
HOME > MULTIMEDIA > Multimedia Detail


After 422 Million Miles, Phoenix Touches Down

Mars was a big news-maker last week, with the successful landing on Sunday of the Phoenix Mars Lander. The probe performed perfectly, which was a relief in the wake of the 1999 disappearance of the Mars Polar Lander.

Earlier in the week, scientists reported that radar imaging from NASA's Mars Reconnaissance Orbiter spacecraft detected as many as seven layers of ice and dust under the planet's north pole. Phoenix will dig down into the polar soil to determine what's there. Elsewhere on the planet, the Mars rover Spirit uncovered evidence of ancient hot springs, a discovery with possible implications for life.

In other space news, astronomers said they were just plain lucky to witness the beginning of a supernova, the fiery death of a star. It was detected by a NASA X-ray satellite while observing another, more advanced supernova.

And astrophysicists reported that much of the missing matter in the universe appears to be clustered in the space between galaxies in a vast web-like structure. But they say they cannot fully account for the majority of normal matter believed to have been created by the big bang.

Ten years ago this month the Astronomical Journal accepted a paper for publication that revealed a dark side to gravity. So-called "dark energy," a force that repels gravity, has become the most profound problem in physics, according to National Geographic.

comments powered by Disqus

Connect With Us:

Facebook Icon Sm Twitter Icon Google+ Icon Pinterest Icon RSS Feed Instagram Icon

Latest Multimedia

2015-08WyskMMClick to Enlarge Image

PODCAST & VIDEO: 3D Printing Replacement Body Parts

Regenerative medicine, a fledgling field with the aim of regrowing parts from a person’s own cells, is being amplified with 3D-printing technology, which can now use organic materials to create scaffolds that cells need to grow into their final forms. Richard Wysk, a professor of industrial and systems engineering at North Carolina State University, discusses the latest successes with this research, and the timeline for creating more complicated structures.

To view all multimedia content, click "Latest Multimedia."

RSS Feed Subscription

Receive notification when new content is posted from the entire website, or choose from the customized feeds available.


Of Possible Interest

Science in the News Weekly: NASA May Inherit Ex-Spy Telescope

Science In The News Daily: U.S. Astronomers Discover It, Then It's Outsourced

Science in the News Weekly: SpaceX Dragon Splashdown 'Like Seeing Your Kid Come Home'

Subscribe to American Scientist