between LS1 and our planet. The mass of the galaxy cluster caused distant light from LS1 to bend around it, magnifying the light of the background star by 2,000 times, thereby allowing the Hubble ...

Uranus' accidental discovery 240 years ago greatly enhanced our understanding of the solar system, doubling the size of the ...

If you’re going to set a sci-fi movie on an alien planet, it’s a nice bonus if that planet actually exists. Or, at least, is ...

Four small, newly discovered worlds are less than six light-years away from Earth, and their discovery reinforces a ...

As it orbits its star, it moves close enough at one point to experience extreme heat, similar to Venus’s temperature. But at its farthest point, the planet is nearly twice the distance from Earth to ...

reaching greatest brilliancy this evening at 6 P.M. EST Earth's sister planet is now a long-lingering "evening star," shining at magnitude –4.9 and some 40° high in the western sky at sunset.

With an orbit of 647 days, HD 20794 d is similar to Mars in our solar system. However, its orbit around the star is highly ...

Artist's concept of a potentially habitable super-Earth orbiting a star called HD 20794. Illustration credit: Gabriel Pérez ...

As the innermost planet, Mercury rarely peeks out beyond the sun, but it will be at its farthest distance this ... astronomy apps can help you locate stars, planets and constellations.