There's a legend about this tree. It's said it started out as a fence post about 80 years ago, then sprouted into the tree you see here, beloved of photographers.

Scientists used data sonification to transform a photo of the now-silent Opportunity rover's 5,000th sunrise on Mars into a piece of music.

There's a reason space engineers describe landing on Mars as "7 minutes of terror."

Signals from Mars will take 8 minutes to travel to Earth on Monday. By the time we hear that InSight has reached the top of Mars' atmosphere, the lander will have already touched down safely ... or crashed.

On November 26, 2018, NASA’s InSight lander will make its daring descent to Mars' surface. NASA engineers hope to broadcast word of a successful touchdown at 20:00 UTC (3 p.m. EST), with live landing commentary starting about an hour before.

"If you were a Martian coming to explore Earth's interior, it wouldn't matter if you put down in the middle of Kansas or the beaches of Oahu ... The beauty of this mission is happening below the surface."

Gilbert Vancell caught these 2 dwarf galaxies - satellites to our Milky Way - from Bromo Tengger Semeru National Park in Indonesia, home to active volcanoes.

When rains fell on the arid Atacama Desert, it was reasonable to expect floral blooms to follow. But a team of astrobiologists has found that the water brought death instead.

"I'm sleepy because turkey is high in tryptophan." True? Or myth?

For Arnaud Besancon - an astrophotographer in Germany - a night of watching for Leonid meteors ended in a beautiful surprise.