About 50 light-years from Earth, a gas giant about half the mass of Jupiter orbits a sunlike star. The discovery of Pegasi 51 b ushered in a new era of exoplanet research.

Astronomers have captured the glowing "wings" of a vast nebula shaped like a bat, unfurling in deep space about 10,000 ...

This is only the third interstellar comet scientists have observed. Its extreme brightening, unusual composition, and intense ...

California-based startup Reflect Orbital aims to build a swarm of 4,000 giant mirrors in low Earth orbit to "sell sunlight" ...

The gas giant WASP-18b belongs to a class known as ultra-hot Jupiters — giant, searing, gaseous planets that orbit perilously close to their stars. Researchers used a new technique called ...

Astronomers have captured a haunting image of a “cosmic bat” spreading its wings across deep space. This nebula, 10,000 light-years away, glows crimson as newborn stars ignite clouds of gas and dust.

Astronomers observe Type II supernova SN 2024bch behaving differently, with energy from Bowen fluorescence rather than ejecta interaction, challenging models of stellar death and high-energy neutrino ...

Astronomers just caught a rare glimpse of an interstellar comet as it zoomed past Mars. Images of the object, dubbed 3I/ATLAS, were captured by two of the the European Space Agency's Mars orbiters -- ...

Despite it’s comparative size to our star, it’s still the least massive object ever detected using gravitational lensing.

Another interesting consequence of relativity is that as time stretches out at high speeds, distances diminish. It’s hard to ...

More than a thousand years ago, astronomers from the Maya civilization developed one of the most sophisticated time-keeping ...

In the 1960s, the United States, the United Kingdom, and the Soviet Union signed a treaty banning nuclear weapons tests ...