The stunning echo of 800-year-old explosion

In the year 1181 a rare supernova explosion appeared in the night sky, staying visible for 185 consecutive days. Historical records show that the supernova looked like a temporary "star" in the constellation Cassiopeia shining ...

Webb spots a second lensed supernova in a distant galaxy

In November 2023, the James Webb Space Telescope observed a massive cluster of galaxies named MACS J0138.0-2155. Through an effect called gravitational lensing, first predicted by Albert Einstein, a distant galaxy named MRG-M0138 ...

The universe can't hide behind the Zone of Avoidance any longer

Our view of the cosmos is always limited by the fact we are located within a galaxy filled with interstellar gas and dust. This is most dramatically seen in the central region of the Milky Way, which is filled with so much ...

Vega flight takes satellites to space

Today (Oct. 10) at 22:36 local time (02:36 BST, 03:36 CEST) the 23rd Vega flight saw its two main satellites launched and released into Earth orbit. The rocket's main passengers were the Earth observing THEOS-2 satellite ...

Could NASA resurrect the Spitzer space telescope?

NASA's Spitzer Space Telescope served the astronomy community well for 16 years. From its launch in 2003 to the end of its operations in January 2020, its infrared observations fueled scientific discoveries too numerous to ...

Webb detects extremely small main-belt asteroid

A previously unknown 100-to-200-meter asteroid—roughly the size of Rome's Colosseum—has been detected by an international team of European astronomers using the NASA/ESA/CSA James Webb Space Telescope. Their project used ...

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