ALIENS could discover humans on Earth by spotting one of 12 signs, scientists say. Topping the list is a clue that could be ...

The northern lights are best seen between 10 p.m. and 2 a.m. local time, according to NOAA, which recommends traveling to a ...

The peak of the current solar cycle is ongoing, bringing spectacular views of the northern lights to several U.S. states.

Predictions are uncertain, but the solar system may be pushed farther from the galactic core or even ejected entirely from ...

(THE CONVERSATION) The NASA project NEOWISE, which has given astronomers a detailed view of near-Earth objects – some of which could strike the Earth – ended its mission and burned on reentering the ...

NASA and the European Space Agency said Wednesday that the chance of the asteroid impacting Earth is slightly more than 1%.

Firefly Aerospace's Blue Ghost lander, a private spacecraft hired by NASA to take experiments to the moon, got a rare front-row seat of the spectacle in space. The phenomenon occurred when the blue ...

The sun is far larger than the WF/PC field of view, so the engineers programmed Hubble to execute a series of very small movements to scan across the sun, taking a series of split-second exposures ...

The gigantic coronal hole is blasting high-speed solar wind toward Earth, potentially igniting vibrant auroras and minor ...

Watch a bright Moon dominate the sky, trace the Winter Hexagon, and continue enjoying the evening parade of planets in the ...

But of these planets, which is nearest to the sun? Mercury is the closest planet to the sun, followed by Venus, Earth, Mars, ...

There are two types of eclipses - a lunar eclipse, when Earth's shadow obscures the moon and a solar eclipse, which takes place when the Moon blocks the sun from view, according to NASA.