Gaia is so accurate it can predict microlensing events

The ESA's Gaia Observatory continues its astrometry mission, which consists of measuring the positions, distances, and motions of stars (and the positions of orbiting exoplanets) with unprecedented precision. Launched in ...

Hubble peers at peculiar Arp 107 pair

This image taken using the NASA/ESA Hubble Space Telescope's Advanced Camera for Surveys (ACS) shows Arp 107, a celestial object that includes a pair of galaxies in the midst of a collision. The larger object (left) is an ...

Giant galaxy seen in 3D

Though we live in a vast three-dimensional universe, celestial objects seen through a telescope look flat because everything is so far away. Now for the first time, astronomers have measured the three-dimensional shape of ...

Hubble views Z 229-15, an intriguing active galaxy

This luminous image from the NASA/ESA Hubble Space Telescope shows , a celestial object that lies about 390 million light-years from Earth in the constellation Lyra. Z 229-15 is one of those interesting celestial objects ...

WEAVE spectrograph begins study of galaxy formation and evolution

More than 500 astronomers from all over Europe, including members of Catalan universities and research centers—the UPC and the ICCUB—have designed and planned a total of five years of operations for the WEAVE spectrograph, ...

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