The most common type of planet found around Sun-like stars in our universe is the sub-Neptune—a planet that sits in size between Earth and Neptune, and typically has a pretty thick atmosphere.

In a paper released today in the journal Science, astronomers tackled that challenge by analyzing data from NASA's Kepler Space Telescope from over 50,000 Sun-like stars, discovering nearly 3,000 ...

A star like the Sun will collapse at the end to be about ... All our observations of the chemical makeup of the stars confirm that the universe began with only the two simplest types of atoms ...

New images of the infant universe captured by the Atacama Cosmology Telescope (ACT) are the most precise "baby pictures" to ...

Galaxies are huge collections of billions of stars like our Sun. Our Sun belongs to a spiral ... All the naturally occurring elements in the Universe are produced by nuclear fusion reactions ...

long-lived disks can tell researchers a lot about the universe, the authors noted, because low-mass stars are believed to vastly outnumber sun-like stars. "Developing a better understanding of how ...

M dwarfs, also called red dwarfs, are low-mass stars smaller than the Sun; this one has a mass about two-tenths that of our Sun. And white dwarfs are the naked cores of Sun-like stars, all that ...

Water may have formed less than 200 million years after the Big Bang, suggesting some conditions for life existed far earlier than previously thought.

A seperate NASA mission to study the sun also launched ... and more than 100 million stars in the Milky Way. It's objective? Discover secrets about how the known universe came to be and find ...

Astronomers may have discovered how water originated in the universe, challenging existing theories on star formation.