Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help.

HD 20794 d completes its orbit just shy of two Earth years, placing it well within reach of conditions that might harbor life ...

The event is designated EP240408a, as it was first detected by the Einstein Probe, an X-ray space telescope, on 8 April 2024.

A super-Earth planet that dips in and out of its star's habitable zone has been discovered just 19.7 light-years away.

Sirius, the Dog Star, is difficult to ignore. Ostentatiously scintillating on the southern horizon right now, the “Searing ...

within a specific luminosity range. Between June and September 2023, Swift J0243.6+6124 went into an outburst phase during which the neutron star exhibited a spin-up state and variations in its ...