Aurora colors: What causes them and why do they vary?
Reference Here we learn what causes the different colors in the aurora borealis (northern lights) and the aurora australis (southern lights).
Reference Here we learn what causes the different colors in the aurora borealis (northern lights) and the aurora australis (southern lights).
Ocean water temperatures around the U.K. and Ireland are over 9 degrees Fahrenheit (5 degrees Celsius) above long-term averages for this part of the year.
NASA has selected five science experiments that it will fund to study the sun and Earth during the Great American Eclipse of 2024.
The European-Japanese BepiColombo spacecraft took this stunning sequence of images of its target planet Mercury during a gravity assist flyby designed to alter its speed.
A gamma-ray burst spotted near the core of an ancient galaxy was likely created by an odd demolition-derby-style collision of two stars or stellar remnants, a new study suggests.
Tiny salt grains discovered in samples returned by the Hayabusa mission could indicate that the largest population of space rocks in the solar system is more watery than previously thought.
A new study has found an odd link between the magnitude of earthquakes and the intensity of cosmic radiation reaching our planet from space.
New data from NASA's James Webb Space Telescope shows that the atmosphere of a rocky exoplanet in the TRAPPIST-1 system is either nonexistent or incredibly thin.
An amazing new video demonstrates how Earth's tilt changes throughout the year, causing the day to lengthen and shorten from north to south as the planet orbits the sun.
The sun unleashed a mighty eruption on Tuesday (June 20) that could spark a light show on Mars. Earth will miss out on the auroras this time, however.
Why didn't the universe collapse into a black hole during the earliest moments of the Big Bang? Simply put, because that's not how you make a black hole.
Reference Tycho Brahe was a pioneering Danish astronomer from the 16th century whose data collection and discoveries changed the way scientists looked at the skies.
The extent of sea ice surrounding Antarctica has fallen to a historic minimum this year, triggering concerns that the pristine polar continent might be reaching a climate change tipping point.
New research looking at the cosmological constant problem suggests the expansion of the universe could be an illusion.
Astronomers have discovered what may be behind a mysterious stellar flare that has been raging for 85 years, finding it could be caused by the destruction of a super-Jupiter planet.
Stone circles and ancient tombs dot much of the UK landscape. As the summer solstice reaches Stonehenge, photographer Josh Dury shares other Neolithic monuments that face the sun.
Europe's Mercury-bound probe BepiColombo made its third close flyby of its target planet on Monday (June 19), revealing a surface riddled with craters, including one that just received a name.
Solitary supermassive black holes lurking in less populated areas of the universe munch on material more commonly than their more crowded counterparts, a new study reports.