Preparing to say goodbye to the Shuttle

The Space Shuttle program is mandated to end on September 30, 2010, less than a year and a half from now. I am preparing to say goodbye.

Chemicals on Mars: Possible evidence of life?

Peter Smith, Principal Investigator of NASA's Phoenix Mars Mission talks about some possible evidence of signs of life in Martian soil by studying chemicals on Mars.

Black holes in galaxy cores related to spiral arms

The distribution of mass in galaxy halos might affect how big central supermassive black holes are, and how tightly wound the spiral arms are.

Satellite down: The night a satellite crashed

The OCO satellite splashed into the sea near Antarctica Tuesday, Feb. 24, 2009, leaving eight years of preparation to study Earth's carbon cycle from space unrealized.

Mars mineral may mean life-friendly past

A study that's opened up the possibility that life existed on the planet Mars deep in its past. The science team of a NASA mission looks at a Mars mineral on its surface.

George Doschek studies sun’s surface, corona

Solar physicist George Doschek of the Naval Research Laboratory spoke to EarthSky on what scientists are learning about the sun's atmosphere.

Tectonics happening on Enceladus!

Astronomer Paul Helfenstein talks about some exciting tectonics - geological movements - on the planet Saturn's icy moon Enceladus.

Space moth: New solar system interacts with interstellar gases

Astronomer Dean Hines talk about an enormous, moth-shaped bunch of interstellar gas and dust showing signs of planet formation, it's dubbed "Space moth".

Saturn’s moon may have ice volcanoes

Hear astronomer Jonathan Lunine talk about possible ice volcanoes on Titan - Saturn's moon - the largest and very mysterious moon.

Orsola de Marco studies the rainbow spectra of stars

Orsola De Marco, an astrophysicist, studies the light of stars split into a rainbow of colors - what astronomers commonly refer to as a 'spectrum.'