But first, a bit of space telescope history. One of the most powerful space-based telescopes to be launched into the Earth’s ...

But there are several important anomalies, including a widely debated one called the Hubble tension. It is named after Edwin ...

So, to create a must-read story list for you, we asked our staff to select their favorite pieces of 2025. Alas, while you're ...

Dark energy may be the most mysterious substance ever proposed, but many scientists are certain it exists. Why?

If scientists are able to inspect it in person, and they find that Mars was indeed once alive with microbes, we would know ...

Bigger than Hubble and launching as soon as 2029, the Lazuli Space Observatory would be the first-ever full-scale private ...

Only a small fraction of the observable universe is comprised of visible matter. Current data suggests all galaxies are ...

Dark energy is the mysterious force thought to be accelerating the universe. . But a new study hints that scientists may have ...

We are going to be getting a lot of exciting new information about galaxies in 2026, says Chanda Prescod-Weinstein, who can't ...

A first-of-its-kind space telescope could soon launch into orbit and potentially chart a new path forward for astronomy.

Astronomers used gravitational lensing to detect a supernova 10 billion light-years away, providing spatially separated images that help study cosmic expansion and early Universe events.

A new study questions dark energy's role in the universe's acceleration, suggesting it may be weakening instead.