Martian moon's orbit hints at an ancient ring of Mars

Scientists from the SETI Institute and Purdue University have found that the only way to produce Deimos's unusually tilted orbit is for Mars to have had a ring billions of years ago. While some of the more massive planets ...

Hubble captures a dozen Sunburst Arc doppelgangers

Astronomers using the NASA/ESA Hubble Space Telescope have observed a galaxy in the distant regions of the Universe which appears duplicated at least 12 times on the night sky. This unique sight, created by strong gravitational ...

Physicists constrain dark matter

Researchers from Russia, Finland, and the U.S. have put a constraint on the theoretical model of dark matter particles by analyzing data from astronomical observations of active galactic nuclei. The new findings provide an ...

Discovery of many new ultra-diffuse galaxies in galaxy clusters

In preparation for the new multi-object survey spectrograph, WEAVE, on the 4.2m William Herschel Telescope, the astronomical community is working on deep imaging surveys to identify the astronomical objects that will be studied ...

Tracking the interstellar object 'Oumuamua to its home

A team of astronomers led by Coryn Bailer-Jones of the Max Planck Institute for Astronomy has tracked the interstellar object 'Oumuamua to several possible home stars. The object was discovered in late 2017 – this was the ...

Help nickname New Horizons' next flyby target

NASA's New Horizons mission to Pluto and the Kuiper Belt is looking for your ideas on what to informally name its next flyby destination, a billion miles (1.6 billion kilometers) past Pluto.

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