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Browsing Tag

Gravitational lens

2 posts
SScience
This is a mosaic image, one of the largest ever taken by Hubble of the Crab Nebula, a 6-light-year-wide expanding remnant of a star’s supernova explosion. Japanese and Chinese astronomers recorded this violent event nearly 1,000 years ago in 1054, as did, almost certainly, Native Americans. Image credit: NASA / ESA / J. Hester / A. Loll, Arizona State University.
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Astronomer Deciphers Crab Pulsar’s Zebra Stripes

  • March 2, 2026
New research from the University of Kansas untangles a decades-old astrophysical puzzle, showing how competing forces — gravity’s…
SSpace
Astronomers Measure Mass of Free-Floating Exoplanet for First Time
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Astronomers Measure Mass of Free-Floating Exoplanet for First Time

  • January 7, 2026
A population of free-floating planets is known from gravitational microlensing surveys. None have a directly measured mass, owing…
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