This is how the universe could end
No one will be there to see it. But before taking its last breath, our Universe could well split with an ultimate spectacle: a fireworks display of supernovae like no other. The result of the explosion of remnants of stars.
Ceres: end of the mystery of the white spots on the surface of the dwarf planet
Since their discovery, the light spots on the surface of Ceres have remained a mystery about their origin. A new study, carried out using data from the American probe Dawn, has shed light on this mystery.
Betelgeuse: Hubble solved the mystery of its darkening
What really happened in Betelgeuse, 725 light years from Earth? Observations carried out with Hubble over several months seem to have clarified the matter. So, end of the mystery of the darkening of the famous red supergiant? In part. Because a satellite has noted an early drop in luminosity which surprises astronomers.
Mars: the enigma of methane in its atmosphere is more complicated than expected
While three missions are on their way to Mars, including NASA’s Perseverance rover which must notably look for traces of extinct life, ESA’s TGO satellite responsible for finding methane on Mars has still not detected any. ! Instead, TGO has just identified the presence of other gases at wavelengths where methane can be detected. Explanations from Franck Montmessin, CNRS research director at Latmos, scientific co-leader of one of the instruments and co-author of the study.
The most distant Milky Way lookalike ever discovered asks astronomers
As surprising as it may sound, this galaxy, although similar to a ring of light, looks like the Milky Way! Called SPT0418-47, this galaxy is gravitationally deformed by a neighboring galaxy, which explains why it appears in this ring shape. It was discovered thanks to the Alma submillimeter observatory. Its interest is not only artistic. This is the first time that astronomers have discovered a galaxy as young as it is calm.
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