Researchers are suggesting that Betelgeuse's strange dimming pattern might be caused by a secret co…

This may be the best month to see the Northern Lights, aka aurora borealis. The spring equinox is c…

A new photo of the Milky Way's supermassive black hole taken from the Event Horizon Telescope shows…

Martha's Vineyard, Cape Cod, Jackson Hole: These and five other small cities attracted the most pri…

The irony is that the observatory wasn’t really looking for either of them. The primar…

NASA is about to launch the world's most powerful space telescope. Webb's first year of science cou…

Strong northern lights can indicate huge bursts of energy from the sun — solar storms — that interf…

Today, a swirling layer of liquid metal powers Earth's magnetic field. Billions of years ago, a mag…

A star that’s 1.27 times the mass of the Sun is dragging the fabric of space and time with it

The structures are rolling along the Sun’s surface, helping scientists map the magnetic fields w…

In energetic particle storms, events on the sun send out floods of the ions and electrons that make…

When clusters of galaxies collide, their billions of stars and trillions of planets rarely make con…

Radio telescopes are detecting more mysterious signals. They switch on and off and don't match any …

Like black holes, neutron stars form as a star that is more massive than our sun collapses in on it…

I'm a professor of astronomy who studies galactic cores, distant galaxies, astrobiology and ex…

The bright flashes the video shows are eruptions like solar flares, while dark patches on the surfa…

As the pulsar whips around, it spews out a jet of charged particles that race along the pulsar's ro…

A binary star system just under 20,000 light-years from Earth is unlike the others. Armed with an a…

Magnetars are the super dense remains of dead stars. Their explosions of X-rays and gamma rays some…