NASA's PUNCH sun-studying mission has seen first light — and the team says all four instruments are indeed working as ...

The constellation of four satellites can take both narrow- and wide-field images of the Sun to study its corona and solar ...

Read more: Astronomers found a 'cold super-Earth' less than 6 light-years away — and it may be the first rocky planet we'll photograph beyond the solar system To depict the speed limit of the ...

asking at each place how long its light takes to reach us here on Earth. The closest object to us is the Moon. Its average distance is about 240,000 miles, so light from the Moon takes (240,000 ...

as seen from Earth. The gravitational field of the foreground star acts like a lens, magnifying the light of the background star. If the “lens” star has an orbiting planet, the extra mass ...

New research led by a York University professor sheds light on the earliest days of Earth's formation and potentially calls into question some earlier assumptions in planetary science about the ...

(CNN) — After decades of searching, astronomers have uncovered some of the strongest evidence yet of exoplanets orbiting Barnard’s Star, the nearest single star system to Earth. The four ...