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Kessler syndrome of colliding satellites could make low-Earth orbit unusable
Space debris threatens ISS: the Kessler syndrome, a theory developed by NASA scientist Donald Kessler, predicts cascading collisions in orbit.
November 15, 2021
The enduring mystique of Barnard’s Star
Sometimes called Barnard's Runaway Star, it's one of the best known stars in the history of astronomy and in popular culture.
November 14, 2021
Surtsey, volcanic island, emerged in 1963
On November 14, 1963, volcanic island Surtsey rose from the sea. Scientists have since studied the natural colonization of plants and animals on it.
November 14, 2021
Landsat 9 returns its 1st Earth images
Landsat 9 took its first images of Earth on October 31, 2021. Enjoy these views of Earth from space, as Landsat 9 begins its monitoring of the land below.
November 12, 2021
An omega moonset’s continuous change
Meiying Lee in Taipei, Taiwan captured these images - and created this video - of the omega moonset on November 10, 2021.
November 12, 2021
Watch live: Crew-3 to arrive at International Space Station
SpaceX's Crew-3 mission with four astronauts is scheduled to take flight at 02:03 UTC on November 11 from the Kennedy Space Center in Florida.
November 11, 2021
Ultra-hot exoplanet has a weird, wild atmosphere
The ultra-hot exoplanet WASP-76b is a good example of weird, broiling Jupiter-type planets that have metal rain and fiery temperatures.
November 11, 2021
Favorite moon and planet photos, November 5 to 10
Moon and planet photos from the EarthSky community. The planets in the evening sky are spectacular now and about to be more so!
November 11, 2021
Permafrost thaw in the Arctic, in the next 30 years
Permafrost thaw in the Arctic is as one of the most immediate problems of global warming. A new assessment of communities at risk.
November 10, 2021
Weird rocky exoplanets unlike any seen before
Astronomers say they have evidence for weird rocky exoplanets that are unlike any in our own solar system, based on the chemical analysis of white dwarf stars.
November 9, 2021
