Astronomers have cataloged and characterized 583 X-ray winds from active galactic nuclei: the powerful accreting supermassive black holes at the centers of galaxies.
A new method helps researchers study light echoes: the late-arriving light from an astrophysical object that has been scattered off dust in the object’s vicinity.
The first radial-velocity search of the disk around a directly imaged substellar companion found no satellites, but future instruments will be more than an order of magnitude more sensitive to these objects.
For the first time, researchers have measured from cosmological simulations a parameter relevant to fluctuations in the density of baryonic matter in the early universe.
When NASA smashed a spacecraft into an asteroid in 2022, it shot a shower of particles into space; these particles might impact Earth, the Moon, or Mars in roughly 7 years.
Neutrino flux from discrete sources within our galaxy could be responsible for 20% of the diffuse neutrino flux up to about 10 teraelectronvolts, and it could account for 50% of the flux at higher energies.