Using ESA's XMM-Newton satellite, Italian astronomers have observed a Galactic X-ray binary system known as 4U 0728-25.

Overall, the simulations performed by Müller, Heger and Powell suggest that the low-mass star in the binary system J0453 + 1559 could in fact be a neutron star. In their next studies, the ...

Plutonium discovered at the bottom of the ocean was found to be refuse from a kilonova that exploded close to Earth 10 million years ago. Kilonovas occur when binary neutron stars spiral closer and ...

One of the common misconceptions about black holes is that they devour not only matter, but also the history of that matter.

This paper reports the discovery of a high-velocity star J07 ejected from globular cluster M15 approximately 21 million years ...

We can usually only weigh a neutron star (measure how massive it is) when it is in a binary star system with another object, such as a white dwarf or another neutron star. However, in these ...

New approach could aid “multimessenger” astronomy by quickly locating sources of gravitational waves emitted during these cosmic events ...

Small stars that are far away tend to be faint and hard to see. De Ruiter and her colleagues used the Multiple Mirror ...

The stars in this rare high mass and compact binary star system are on a collision course with one another that should result in a special kind of supernova. Astronomers expect them to explode as ...