Finally, the Earth moves a little bit beyond one complete revolution, so the stick again points towards the sun for a second local noon. The sidereal day is just a little bit shorter—approximately 23 ...

At APL, a team is developing portable tech to detect ocean species using eDNA. Their goal: real-time, low-cost monitoring to ...

For those north of the equator, the solstice marks the longest day and the shortest night of the year. The Earth spins on a ...

We Earthlings see the sun every day of our lives—but gaining a truly new view of our star is a rare and precious thing. So ...

Here is everything to know about the northern lights this week, including whether they will be visible in Arizona. The northern lights will actually be visible in 15 states tonight: Alaska. Washington ...

The craft helped solar boffins to discover that Sol’s north and south magnetic poles are both on the southern side of the ...

The European Space Agency's Solar Orbiter, in collaboration with NASA, has captured unprecedented images of the Sun's south ...

The finals of the Icebreaker of Knowledge international scientific and educational initiative took place at the ATOM Museum in VDNKh ...