"Our measurements imply that the supermassive black hole mass is 10% of the stellar mass in the galaxies we studied." ...

Hypervelocity stars (HVSs) were first theorized to exist in the late 1980s. In 2005, the first discoveries were confirmed.

Star formation in the early universe was a vigorous process that created gigantic stars. Called Population III stars, these ...

For stars heavier than eight but lighter than 25 solar masses, neutron stars will be produced, which instead, are mainly upheld by neutron degeneracy pressure. For non-rotating neutron stars ...

Most black holes form from the collapse of stars about 10 times to a hundred times the mass of our sun, while supermassive black holes can be anywhere from a hundred thousand solar masses to ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Despite their small diameters—about 12.5 miles (20 kilometers)—neutron stars boast nearly 1.5 times the mass of our sun, and are thus incredibly dense. Just a sugar cube of neutron star matter ...

The term "blue" is a bit of a misnomer because the star's color blends in with all the other solar-mass stars in the cluster. Hence it is sort of "lurking" among the common stellar population.

The ESA’s Gaia mission mapped the positions and velocities of stars with extreme precision by measuring about one billion ...

The aurora borealis is back and is expected to be visible in more than 10 states. See which states will have the best views.

An object between 2 and 50 times the mass of Jupiter may have ... random encounters within an open star cluster having properties expected for where the solar system formed," the researchers ...