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Astronomy

TESS discovers its first Earth-sized planet

TESS discovers its first Earth-sized planet Orbiting a nearby star, the new planet is the smallest identified so far by the TESS mission. Jennifer Chu NASA’s Transiting Exoplanet Survey Satellite, TESS, has discovered its first Earth-sized exoplanet. The planet, named ...

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NASA’s Cassini Reveals Surprises with Titan’s Lakes On its final flyby of Saturn’s largest moon in 2017, NASA’s Cassini spacecraft gathered radar data revealing that the small liquid lakes in Titan’s northern hemisphere are surprisingly deep, perched atop hills and ...

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10 Things You Should Know About Planetary Defense

These three radar images of near-Earth asteroid 2003 SD220 were obtained on Dec. 15-17, by coordinating observations with NASA’s 230-foot (70-meter) antenna at the Goldstone Deep Space Communications Complex in California and the National Science Foundation’s (NSF) 330-foot (100-meter) Green ...

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Black Hole Image Makes History

Scientists have obtained the first image of a black hole, using Event Horizon Telescope observations of the center of the galaxy M87. The image shows a bright ring formed as light bends in the intense gravity around a black hole ...

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Hubble Watches Spun-Up Asteroid Coming Apart

This Hubble Space Telescope image reveals the gradual self-destruction of an asteroid, whose ejected dusty material has formed two long, thin, comet-like tails. The longer tail stretches more than 500,000 miles (800,000 kilometers) and is roughly 3,000 miles (4,800 kilometers) ...

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