Astrophysics News


Variations in the ‘Fogginess’ of the Universe Identify a Milestone in Cosmic History

Islands of cold gas were left behind when the universe heated up after the big bang


TESS Discovers Its First Earth-Sized Planet

Orbiting a nearby star, the new planet is the smallest identified so far by the TESS mission.


Astronomers Capture Historic First Image of a Black Hole

South Pole Telescope contributes to observations of black hole in distant galaxy


How to Use Gravitational Waves to Measure the Expansion of the Universe

Ripples in spacetime lead to new way to determine size and age of the universe.


Subaru Telescope Helps Determine that Dark Matter is Not Made Up of Tiny Primordial Black Holes

An international team of researchers has put a theory speculated by the late Stephen Hawking to its most rigorous test to date.​


LIGO and Virgo Resume Search for Ripples in Space and Time

Upgrades to the detectors' lasers, mirrors, and other components will increase their sensitivity of about 40 percent over its last run.​


Dark Matter May be Hitting the Right Note in Small Galaxies

Dark matter may scatter against each other only when they hit the right energy, say researchers in Japan, Germany, and Austria in a new study.


Astronomers Observe Evolution of a Black Hole as it Wolfs Down Stellar Material

Halo of highly energized electrons around the black hole contracts dramatically during feeding frenzy.


X-ray Pulse Detected Near Event Horizon as Black Hole Devours Star

Pulse pattern suggests distant black hole must be spinning at least at 50 percent the speed of light.​


TESS Discovers Its Third New Planet, With Longest Orbit Yet

Measurements indicate a dense, gaseous, “sub-Neptune” world, three times the size of Earth.​