Stars
Astronomers Find Dozens of Massive Stars Fleeing the Milky Way
The Milky Way can't hold onto all of its stars. Some of them get ejected into intergalactic space and spend…
Astronomers are Hoping to Detect Gravitational Waves Coming from Supernova 1987A
A supernova explosion is a cataclysmic explosion that marks the violent end of a massive star’s life. During the event,…
This is a First. An Exoplanet in a Polar Circumbinary Disc Surrounding Two Stars.
We live in an age of exoplanet discovery. One thing we've learned is not to be surprised by the kinds…
Did Betelgeuse Consume a Smaller Star?
What's going on with Betelgeuse? In recent years it's generated a lot of headlines as its luminosity has shifted dramatically…
Three Planets Around this Sunlike Star are Doomed. Doomed!
According to new research we can start writing the eulogy for four exoplanets around a Sun-like star about 57 light…
What’s the Best Way to Find Planets in the Habitable Zone?
Despite the fact that we've discovered thousands of them, exoplanets are hard to find. And some types are harder to…
An Exo-Neptune Beat the Odds and Kept its Atmosphere
As planet-hunting scientists find more and more planets, they've encountered some puzzles. One of them concerns the lack of Neptune-size…
Do Red Dwarfs or Sunlike Stars Have More Earth-Sized Worlds?
Earth is our only example of a habitable planet, so it makes sense to search for Earth-size worlds when we're…
What Caused Eta Carinae’s 1840 “Great Eruption?”
n 1840, a seemingly innocuous star, Eta Carinae, suddenly brightened to become one of the brightest stars in the sky…
We Can't See the First Stars Yet, but We Can See Their Direct Descendants
The first stars in the Universe were enormous, made of primordial hydrogen and helium from the Big Bang. They lived…