GW150914

New observations with the Atacama Cosmology Telescope in Chile reveal the earliest-ever "baby pictures" of our universe, showing some of the oldest light we can possibly see.

Today, the European Space Agency's gamma-ray telescope ends its observations. During its 22 years in space, Integral has reshaped our view of the most dramatic events in the universe. The high-energy observatory played a pivotal role in revealing the nature of the cosmic explosions known as gamma-ray bursts and in uncovering the origin of gravitational wave events. Recently, it delivered unique insights into how…

The Higgs boson's most captivating puzzle still remains. Predicted way back in the 1960s, the discovery of the Higgs boson in 2012 completed the Standard Model. Here's why it remains fascinating..

Some black hole pairs roll around each other in wobbly, egg-shaped orbits that could hold clues about their origins, gravitational wave measurements suggest.

MIT scientists have identified 18 new tidal disruption events (TDEs) — extreme instances when a nearby star is tidally drawn into a black hole and ripped to shreds. The detections more than double the number of known TDEs in the nearby universe.

A sunspot has put on a stunning display of radio waves lasting for over a week that resembles the northern and southern lights — auroral displays that occur ...

The supermassive black hole is 13.2 billion light-years away and could help uncover the mysteries of how the largest black holes form.

NASA has discovered a record-breaking colossal black hole, formed after the big bang, using the space agency's "cosmic magnifying glass."

Astronomers have discovered the most distant black hole yet seen in X-rays, using NASA telescopes. The black hole is at an early stage of growth that had

For more than a decade, astronomers have been trying to get a closer look at GJ 1214b, an exoplanet 40 light-years away from Earth. Their biggest obstacle is a thick layer of haze that blankets the planet, shielding it from the probing eyes of space telescopes and stymying efforts to study its atmosphere.

Astronomers have directly measured the mass of a dead star using an effect known as gravitational microlensing, first predicted by Albert Einstein in his General Theory of Relativity, and first observed by two Cambridge astronomers 100 years ago.

Observations of Exoplanet WASP-39b show fingerprints of atoms and molecules, as well as signs of active chemistry and clouds. WASP-39 b is a planet unlike any in our solar system – a Saturn-sized behemoth that orbits its star closer than Mercury is to our Sun. When NASA's James Webb Space Telesco

Astrophysicists have performed a powerful new analysis that places the most precise limits yet on the composition and evolution of the universe. With this analysis, dubbed Pantheon+, cosmologists find themselves at a crossroads.

A technique used to reveal dark matter could also shed light on a disagreement about the clumpiness of matter in the cosmos.

MIT astronomers discovered a "black widow binary" — a rapidly spinning neutron star circling and slowly consuming a smaller companion star. Named ZTF J1406+1222, the pair has the shortest orbital period yet identified, and is unique in that it appears to host a third star that orbits around the two inner stars every 10,000 years.

Gravitational waves are disturbances or ripples in the curvature of space-time caused by massive objects moving with extreme accelerations. In outer space that means objects like neutron stars or black holes orbiting around each other at ever-increasing rates, or stars that blow themselves up. They propagate as waves outward from their source at the speed […]

This would mean the two stars "spun down" for a second before collapsing into black hole

Fresh data suggest instrumental errors may have mimicked a purported signal from the universe's first stars

The $25‐million facility in Namibia will be the continent's first millimeter‐range astronomical observatory

If it exists, that is.