The Hubble Space Telescope was originally expected to last about 15 years in orbit, before its optical surfaces became too ...

In October 1923, Edwin Hubble utilized the 100-inch Hooker telescope to photograph the Andromeda Nebula, identifying a variable star within it. Hubble applied the known period-luminosity relationship ...

A mysterious glow at the center of the Milky Way has puzzled astronomers for more than a decade. New research offers an ...

The interstellar comet 3I/ATLAS, with its massive size, record speed, and mysterious Milky Way origin, has scientists like Avi Loeb speculating if it's alien technology ...

The cluster can offer fresh insights into how stars of all sizes form and evolve. Star clusters are among the many objects observed by the Hubble Space Telescope. These gravitationally bound groups of ...

Historically, the Andromeda Galaxy (M31) was a subject of extensive debate, initially considered a "nebulous smear" and later central to the "island universe" hypothesis proposing its status as an ...

The James Webb Space Telescope has looked back into deep time to find “rubies” or “little red dots” stretched across the ...

RIT researchers have revealed a new view of the Red Spider Nebula, as featured in ‘The Astrophysical Journal’ and by the ...

A mysterious glow has been detected in the Milky Way, challenging our understanding of cosmic emissions and hinting at the ...

NASA joins the Roman space telescope and key instruments, marking a milestone toward its 2027 launch to reveal the cosmos.

Fears of extraterrestrial probes rise with 3I/ATLAS's sunward jet, but NASA debunks: routine comet activity ahead of 29 Oct ...

Explore NASA’s 2025 comet watchlist, which features the interstellar visitor Comet 3I/ATLAS and 8 others reshaping U.S. space ...