Discussion and news about planets, exoplanets, and astrobiology
The Cassini mission's third-from-last flyby of the icy moon Enceladus reveals that a highly complex network of thin cracks covering the surface extend all the way into the northern polar region...
A new study of fragments from the Chelyabinsk meteor reveal that it went through at least eight impact events spread across the last 4.5 billion years before it ended up impacting Earth
This week brings a video reconstructed from images of the Philae lander's approach to a comet, and a major new analysis of data from the Cassini mission that bolsters the case for a global, not just local, ocean beneath the icy crust of Enceladus...
Living on a small planet in a big universe exposes us to all manner of existential problems, but what are the worst, and what are the weirdest?
A new estimate of Earth's total tree population shows previous estimates were seven times too low, and there are implications for efforts to understand the nature of life here and elsewhere in the universe...
NASA's New Horizons team decide on their next target, a classical Kuiper Belt object that can be reached by January 2019, but the agency must still approve funds for this extended science mission...
A hundred years on, and the implications of Einstein's general relativity still surprise and delight
NASA's Curiosity rover provides a beautiful, scientifically appetizing view of what's ahead on Mount Sharp on Mars
A new effort to bring global cohesion to origins of life science launches, and with it a fresh look at how to crack one of the greatest existential questions.
The announcement of a newly confirmed exoplanet in Kepler data within its star's "habitable zone" is great news, but also reinforces some misconceptions about what an Earth-like world means...
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