Leo P, a tiny galaxy, stopped making stars after the universe’s reionization. Unlike most galaxies, it restarted billions of ...

Only after that could rocky planets form, and by extension, habitable planets. That’s been axiomatic in astronomy.

The Firefly Sparkle galaxy is unlike anything previously observed at such an early point in the universe ... form during the so-called Cosmic Dawn, a period in the universe’s history when the ...

Nayak adds, "By shedding light on the birth of a super star cluster in a nearby galaxy, this research helps us understand the ...

Pinpointing a Milepost Marker Star that Opened the Realm of Galaxies At the dawn of the 20th century, astronomers faced a ...

Astronomers have traced two mysterious fast radio bursts from space to wildly different places, which suggests the phenomenon ...

For millions of years following the Big Bang, after the universe’s roiling soup of ... When did the first stars form and when did light, escaping their host galaxies, kick off reionization?

Recent discoveries by the James Webb Space Telescope reveal that supermassive black holes were present much earlier than ...

For humans, the most important star in the universe is our sun. The second-most important star is nestled inside the ...

Young supernovas could have spread water out into the cosmos, causing planet formations earlier than originally thought.