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 ...

Small telescopes in Chile are first on Earth to cut through the cosmic noise, peering back more than 13 billion years to the ...

Astronomers have discovered a “super-Earth,” or a world larger than our planet, orbiting a star about 137 light-years away. A second planet, thought to be the size of Earth, may also be ...

UK researchers have confirmed the existence of a “super-Earth” located 20 light-years away that could reveal the existence of extraterrestrial beings, per a cosmic study published in the ...