NASA's next big eye on the cosmos is now fully assembled. On Nov. 25, technicians joined the inner and outer portions of the ...

Astronomers using the Subaru Telescope in Hawaiʻi have discovered a massive planet and a brown dwarf orbiting distant stars.

The fourth day of the 18th annual Space Telescope Advent Calendar features a cluster of powerful infant stars blasting a ...

A spectacular new view of two dwarf galaxies caught in the middle of a cosmic collision reveals a glowing gas bridge, streams ...

Proliferating satellites are beginning to harm the science work of the beloved Hubble Space Telescope and other observatories ...

An exponential increase in the number of satellites placed in low-Earth orbit has brought advances in telecommunications ...

Starlink is growing fast, and SpaceX has filed paperwork for as many as 42,000 satellites. Others such as OneWeb, Amazon, ...

Still, science being science, we needed proof—and we got it in 1992, when two astronomers found two planets orbiting a pulsar ...

The James Webb Space Telescope's Near-Infrared camera (NIRCam) captured stunning imagery of Neptune. It is the "clearest view ...

Light from the half a million satellites that humanity is planning to launch into Earth's orbit in the coming years could ...

Using the James Webb Space Telescope, astronomers have detected unexpected high-energy ultraviolet radiation around five ...

The study shows that nearly 40 percent of the Hubble Space Telescope’s images could suffer interference from the ...