On Earth, depending on where you are, the analemma can be at different angles, though it always traces out this ...

When most of us think about theweather on other planets, we imagine extreme conditions—boiling acid rain, methane snow, or ...

Mars shining like a red star in the night sky, alongside the blue-tinged star Regulus. These two celestial bodies, though ...

You can also think about solstices in terms of where on Earth the sun appears. When it’s a summer solstice in the Northern Hemisphere, the sun appears directly over the Tropic of Cancer, the ...

Your blood is also red because of a mixture of iron and oxygen in a molecule called hemoglobin. So in a way, the ancient ...

New images from ESA's Biomass satellite reveal forests, volcanoes, deserts and glaciers in striking detail, hinting at what's still to come.

New images from NASA's Curiosity Mars rover show the first close-up views of a region scientists had previously observed only ...

SpaceX could potentially have 1,000 to 2,000 Starships traveling between Earth and Mars during the transfer windows, due to 26 months between opportunities, but Musk said the details of how that ...

A superbright Mars is currently visible alongside Regulus, the "Heart of the Lion" star located around 79 light-years from ...

Looking to inspire the next generation of curious minds? These are our picks of the best popular science books for children ...