Extended components of little red dots in the rest-frame optical
Furtak, L. J. et al. JWST UNCOVER: extremely red and compact object at zphot = 7.6 triply imaged…
‘Cosmic Glitch’ could explain why gravity acts differently across the Universe
Einstein’s theory of gravity may behave slightly differently across distances of billions of light-years, with gravity appearing about…
Cosmic plasma was supposed to rule out dark photons. Simulations say otherwise
A major limit on dark photon dark matter may be far weaker because early-universe plasma stops absorbing energy…
Three Supermassive Black Holes Found in a Galaxy From the Dawn of the Universe
An AI-generated visualization of a distant galaxy, containing, besides dust, gas, and young stars, three massive, active black…
Quote of the day by Jennifer Wiseman: “Our bodies actually depend on…” |
Look up at the night sky and the stars can seem impossibly distant, disconnected from the ordinary details…
Astronomers find an ultra-dense mega-Earth 23 times our planet’s mass but only 2.5 times its size
GJ 523b is 2.55 times Earth’s radius but about 23.5 times its mass, making it unusually dense for…
2-kiloparsec trail of stars could reveal how dark matter shapes galaxies
A thin ribbon of stars around the ultra-diffuse galaxy UGC 9050-Dw1 may be the first globular-cluster stellar stream…
The Milky Way glows brightly in first-of-its-kind neutrino image
IceCube has produced the first neutrino image of the Milky Way, revealing high-energy particle activity concentrated along our…
Huge space radars to track tiny objects could be assembled by robots
Space is becoming increasingly crowded, and tracking the objects orbiting Earth is becoming a harder engineering problem. NASA…
New Gaia data is challenging a 50-year-old assumption about how stars and galaxies form
Astronomers found that star clusters do not always form the same balance of small and large stars, challenging…
Kelvin-Helmholtz instability seen on the Sun
The surface of the Sun has been photographed in more detail than ever before, and it turns out…
Scientists Find a New Way To Detect Hidden Water Ice on the Moon
On the first shift during the lunar flyby observation period, the Artemis II crew captured more than two-thirds…