One of the Holy Grails in cosmology is a look back at the earliest epochs of cosmic history. Unfortunately, the universe's ...

The clearest and most precise images yet of the universe in its infancy—the earliest cosmic time accessible to humans—have ...

New observations with the Atacama Cosmology Telescope in Chile reveal the earliest-ever "baby pictures" of our universe, ...

Cosmic microwave background data support cosmology’s standard model but retain a mystery about the universe’s expansion rate.

Lunar Eclipse 2025: On March 14, 2025, the heavens will align in a rare cosmic event—a total lunar eclipse coinciding with the joyous celebration of Holi. This unique occurrence will showcase a ...

“Hubble images show two Kuiper-belt objects (KBOs ... or something that actually is oddly flat, like a pancake.” Of the 40 identified binary objects in the Kuiper Belt, another system, Lempo, has been ...

Detecting such jets from the early universe has always been challenging. The cosmic microwave background—radiation left over from the Big Bang—tends to obscure them. But this time, astronomers were ...