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Astronomy

By Looking Back Through Hubble Data, Astronomers Have Identified six Massive Stars Before They Exploded as Core-Collapse Supernovae

The venerable Hubble Space Telescope has given us so much during the history of its service (32 years, 7...

Hubble Spots Two Open Clusters. One is Also an Emission Nebula

Open star clusters are groups of stars in loosely-bound gravitational associations. The stars are further apart than the...

Construction Begins on the Square Kilometer Array

At twin ground-breaking ceremonies today in South Africa and Australia, project leaders formally marked the start of construction on...

How Do Stars Get Kicked Out of Globular Clusters?

Globular clusters are densely-packed collections of stars bound together gravitationally in roughly-shaped spheres. They contain hundreds of thousands...

One of the World’s Biggest Radio Telescopes is Hunting for Signals From Extraterrestrial Civilizations

Breakthrough Listen, a privately funded project seeking evidence of extraterrestrial intelligence, has started operations on the MeerKAT radio telescope...

It’s Feeding Time For This Baby Star in Orion

Young protostars are wrapped in what could be called a womb of gas and dust. The gas and...

A Black Hole Consumed a Star and Released the Light of a Trillion Suns

When a flash of light appears somewhere in the sky, astronomers notice. When it appears in a region...

The Second-Closest Supermassive Black Hole Might be in a Nearby Dwarf Galaxy

There’s a little galaxy in the Milky Way’s cosmic neighborhood called Leo 1. It’s a dwarf spheroidal that...

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