There are several ideas to explain the origin of life on Earth. A new one is so elegant and simple that it might change our whole perception of life. What if life is something matter just does, under the right conditions? Julian explains.
Methane is such a promising sign for the existence of biological life that it's hard not to get excited when it's detected on Mars. But Amy Shira-Teitel runs down some other ways the gas could be observed on the Red Planet without their being life.
Every year, the Hubble Space Telescope seems to revolutionize our understanding of our vast and beautiful universe. 2014 was no different.
New research suggests we might want to widen our search for Earth-like exoplanets. Younger stars, it turns out, are hot enough to support exoplanetary life farther away from a star than we thought.
The photos capture Mars passing below two objects known as the Lagoon and Trifid nebulas, both in the constellation Sagittarius.
With a few brief exceptions, NASA's New Horizons probe has been asleep since 2006 while it zooms toward Pluto. But it's almost time for the craft to wake up and dial in on the former planet. Amy tells us what the plucky probe will be studying.
Our solar system has a handful of bodies exhibiting some strange, highly elliptical orbits. Are they being pulled by a massive planet WAY out there beyond Neptune? Amy Shira Teitel examines what might be causing these objects to behave so oddly.
Eruptions could have kept planet warm enough for liquid water to intermittently flow across its ancient surface, suggests a new study.
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