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Life Needs Sunlight — and That Could Change Where We Look for AliensWith every new exoplanet discovered, the same question arises: Could this world host life? That capability requires so much more than liquid water.
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This Scale Ranks Extraterrestrial-Life Discoveries, Grounding Overblown HeadlinesA team of researchers pursuing the search for extraterrestrial intelligence has decided to revive a scale meant to ground alien-detection alerts in reality.
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Longest Lunar Eclipse of the Century Dazzles SkywatchersThe 21st century's longest total lunar eclipse entranced skywatchers around the globe today (July 27).
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Who Discovered Mars, Anyway? A Look Back at the History of the Red PlanetJust because we'll never be able to give one sharp-eyed human a name doesn't mean there's nothing interesting to learn about the history of observing Mars.
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12-Mile-Wide Lake May Be Hiding Beneath Martian Surface -
Rare (Adorable) Asteroid Twins Discovered Near EarthSurprise — it's twins! A near-Earth asteroid called 2017 YE5 turns out to be two separate rocks.
