Stargazers on nearly one half of the world witnessed a total lunar eclipse overnight, as a rare cosmic lineup caused the moon ...

Starting around 11:30 p.m. Pacific time Thursday and lasting for about an hour, the first total lunar eclipse anywhere in the ...

NASA’s newest space telescope rocketed into orbit Tuesday to map the entire sky like never before — a sweeping look at ...

Tonight a total lunar eclipse will sweep the Western Hemisphere as the sun, earth and moon align. Called the 'Blood Moon', ...

Mercury, the first planet from the sun, is about to stand out among the stars this week. But this brightness is not expected ...

The vernal equinox occurs as Mercury stands still in Pisces and several of Jupiter’s moons transit in the sky this week.

Though sun halos can happen year-round, they are especially noticeable in the winter when ice-filled cirrus clouds are more ...

It was around 1870 when the British physicist John William Strutt, better known as Lord Rayleigh, first found an explanation for why the sky is blue: Blue light from the Sun is scattered the most when ...

Social media users were perplexed by unusual sighting in the viral video, with one saying "genuinely what is this." ...

As the moon moved through the shadow of the Earth, it was also being illuminated by light from the sun — causing the moon to ...

Venus lies bright but low, while Jupiter and Mars dominate. South America and the eastern Pacific Ocean get the best views of ...