NASA’s Roman Space Telescope has demonstrated remarkable pointing stability and given its powerful planet-imaging coronagraph its first look at the cosmos. The telescope can already stay locked on a ...

NASA’s Nancy Grace Roman Space Telescope has completed key guidance tests and given its Coronagraph Instrument its first look ...

Mike Brown is convinced that beyond Neptune, at the far reaches of our solar system, there's an unseen giant planet. "This is the 5th largest planet in our solar system, lurking out there, waiting to ...

ALMA, a 66‑antenna radio observatory in northern Chile, is boosting its star‑ and planet‑formation studies with new receivers for interstellar gas.

A powerful new observatory is the best hope yet for finding the elusive Planet 9, a large planet that some scientists say is hidden in our solar... If Planet Nine is out there, this telescope might ...

The James Webb Space Telescope has discovered an exoplanet using the direct-imaging technique. The host star's light was blocked using a coronagraph to reveal a planet to its right. The light at the ...

For the first time, astronomers have directly mapped the surface of a rocky planet outside our solar system, and the result is stark: a scorched, pitch-black world with no atmosphere, no clouds, and ...

Astronomers using NASA’s James Webb Space Telescope just gave a cosmic mystery a serious plot twist. The event in question—a sudden brightening from a star about 12,000 light-years away—was initially ...

Astronomers using the Subaru Telescope in Hawaiʻi have discovered a massive planet and a brown dwarf orbiting distant stars. The discoveries are the first results from OASIS (Observing Accelerators ...

Some scientists are convinced that beyond Neptune, there's a planet they've yet to see. This so-called "Planet 9" is so far away, it would be a faint object. The stretch of sky researchers would have ...

About a decade ago the American space agency seriously started considering a series of telescopes dedicated to finding definitive proof of life on worlds located in other solar systems. It did so by ...