Stars

Merging Stars Can Lead to Blue Supergiants

Blue supergiants are a rare type of star that is vastly larger and more luminous than the Sun. They can…

2 months ago

Brown Dwarf Pairs Drift Apart in Old Age

The only thing worse than drifting through space for an eternity is doing it alone. Observations with the Hubble Space…

2 months ago

One in Twelve Stars Ate a Planet

That stars can eat planets is axiomatic. If a small enough planet gets too close to a large enough star,…

2 months ago

Massive Stars Have the Power to Shape Solar Systems

Stars shape their solar systems. It's true of ours, and it's true of others. But for some massive stars, their…

3 months ago

Even Stars Like the Sun Can Unleash Savage Flares in Their Youth

Why would a young Sun-like star suddenly belch out a hugely bright flare? That's what astronomers at Harvard Smithsonian Astrophysical…

3 months ago

Even if We Can’t See the First Stars, We Could Detect Their Impact on the First Galaxies

For a long time, our understanding of the Universe's first galaxies leaned heavily on theory. The light from that age…

3 months ago

A Super-Earth (and Possible Earth-Sized) Exoplanet Found in the Habitable Zone

Astronomers have found a new Super-Earth orbiting an M-dwarf (red dwarf) star about 137 light-years away. The planet is named…

4 months ago

How Dangerous are Kilonovae?

Neutron stars' collisions create powerful explosions, a type of gamma-ray burst known as a kilonova. What would it be like…

4 months ago

New Types of Hidden Stars Seen for the First Time

Astronomers performing a vast infrared variable star survey have discovered new additions to the stellar menagerie. These new types of…

4 months ago

Nancy Grace Roman Could Find the First Stars in the Universe

The first stars in the Universe were made out of the primordial hydrogen and helium left over from the Big…

4 months ago