See the Martian moon Phobos as it passes over iconic landscapes on the red planet, including a trio of volcanoes and the largest canyon in the solar system.
Orion the Hunter may be the most recognizable constellation, visible from both hemispheres. It's best in winter from the north and summer from the south.
Earth's radio bubble is the extent to which our radio broadcasts have traveled. The 1st intentional radio broadcast was on December 24, 1906. Where is it now?
Researchers found Earth's atmosphere sheds onto the lunar surface thanks to the solar wind stripping particles, which then spiral along magnetic field lines.
The constellation Triangulum lies close to overhead in northern skies on December evenings. It contains the Triangulum galaxy, a gorgeous pinwheeling spiral.
Kelly Kizer Whitt - EarthSky’s nature and travel vlogger on YouTube - writes and edits some of the most fascinating stories at EarthSky.org. She's been writing about science, with a focus on astronomy, for decades. She began her career at Astronomy Magazine and made regular contributions to other outlets, including AstronomyToday and the Sierra Club. She has nine published books, including a children's picture book, Solar System Forecast, and a young adult dystopian novel, A Different Sky.
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