Many stars in our galaxy exist in pairs. Now scientists are finding clues that our Sun may once have had a companion of its ...

For spectators, total solar eclipses – such as the one that dazzled millions in April across North America – represent ...

Space weather experts warn that solar activity will persist or even increase after solar maximum has ended and we enter a phase of the solar cycle dubbed the "battle zone." ...

By studying this decay, scientists can better understand the timing and conditions in the early solar system, giving clues about when the sun formed. The complexity of bound-state decay can be ...

Ancient stars located surprisingly near to our sun formed less than a billion years after the Big Bang — suggesting part of the Milky Way is much older than previously thought, a study has found.

ESA has launched three other Proba missions thus far, with one currently observing the Sun. Proba-2 launched in 2009, and was ...

The bulk of the matter formed the Sun. The rest, spread out into a disk as the young Sun rotated, eventually coalesced into the many objects that make up our solar system. That's old news.

The two Proba-3 satellites launched from India at 5:34 am EST (10:34 UTC) Thursday, riding a Polar Satellite Launch Vehicle (PSLV). The PSLV released Proba-3 into a stretched-out orbit with a low ...

Our Sun was formed around 4.6 billion years ago from a giant cloud called a stellar nebula, mainly made up of hydrogen gas and dust. The nebula collapsed under its own gravity and, as it did ...

Two European satellites have been launched into orbit to mark the start of a project to create artificial solar eclipses in space.

ESA’s Proba-3 mission will use one satellite to block out the sun for another satellite, bringing the sun’s middle corona into new focus.

Proba-3 will attempt to recreate this effect by flying in careful formation, so that one of the spacecraft eclipses the other for six hours each orbit. “By lining up with the Sun,one spacecraft ...