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Huge Plasma Tsunamis Hitting Earth Explains Third Van Allen Belt
A transient third Van Allen belt was first observed in 2013, and new research explains how it was formed.
Watch Mercury Transit the Sun in Multiple Wavelengths
No one had a better view of the transit of Mercury across the Sun than the space-based Solar Dynamics Observatory,…
How Long Does it Take Mars to Orbit the Sun?
The planet Mars has a highly eccentric orbit around the Sun, and takes a little under two years for it…
Our Sun May Have Eaten A Super Earth For Breakfast
A Super-Earth may have formed in our Solar System's earlier days, and then been destroyed by the Sun.
How to Safely Watch Mercury Transit the Sun on May 9
On Monday, May 9 Mercury will make one of its relatively rare transits of the Sun. Get ready for the…
Did the Sun Steal Planet Nine?
One of the biggest new mysteries in our Solar System is the purported presence of a large and distant "Planet Nine,"…
Solar Storms Ignite Aurora On Jupiter
In 2011, a coronal mass ejection reached Jupiter and produced x-ray auroras hundreds of times brighter than Earth's auroras.
Sun-Like Star Shows Magnetic Field Was Key For Early Life On Earth
By studying the star Kappa Ceti, researchers have determined that the young Sun in our solar system was a much…
Who Discovered Helium?
In addition to its many commercial and scientific uses, helium is one of the most plentiful elements in our universe,…
We Have Underestimated Our Sun’s Destructive Reach
The Sun causes the destruction of asteroids at a much greater distance than previously thought.