For years, astronomers have toyed with the idea that the Sun hides an extra planet so distant and dim that even the best ...

The image combines data collected by JWST's Near-InfraRed ... the objects' vast age range — younger stars appear bluer and older stars appear redder — and distance from Earth, as galaxies ...

Is it really out of this world? A new photo claiming to be a 1,000-foot-wide UFO near the Four Corners is sending the ...

What you can see tonight [maps] — The brightest planets in May's night sky: How to see them (and when) Earth's moon is visible hanging above the scene as a waxing crescent, with the unlit ...

The signals are sent out as short pulses which may be reflected by objects in their path ... Weather radar images are generally a map view of reflected particles for a specified area surrounding the ...

NASA is tracking a house-sized asteroid making its way toward Earth today, May 2, 2025, with an alarming speed of 42,300 ...

NASA is also tracking two other asteroids near Earth today, including a larger bus-sized one called "2025 HR1" that's ...

The newly observed object, named 2024 PT5, was spotted near Earth last August and is thought to be a lunar fragment, possibly blasted off the Moon during a massive impact long ago. This makes it ...

The discovery hints at a hidden population of lunar fragments traveling near Earth. "If there were only one object, that would be interesting but an outlier," Teddy Kareta, a planetary scientist ...

The asteroid, spanning around 49 to 111 feet in diameter, is hurtling through space at some 42,300 miles per hour.

For the first time, astronomers have probed the physical environment of repeating X-ray outbursts near monster black holes ...

Space junk and meteoroids are falling to Earth every year, posing a growing risk as they re-enter the atmosphere at high speeds. Researchers are using infrasound sensors to track these objects ...