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Circumhorizon arc or iridescent cloud?
It's easy to confuse a circumhorizon arc with an iridescent cloud, and vice versa. Circumhorizon arcs are more commonly seen at this time of year.
July 1, 2023
1st Saturn image from Webb highlights glowing rings
Webb has taken its 1st Saturn image! This infrared view shows Saturn's rings shining bright in a golden light. You can also spot some of Saturn's moons.
July 1, 2023
Milky Way shines in new ‘ghost particle’ neutrino image
Scientists released a new "ghost particle" image of the Milky Way. It is the 1st-ever image taken of our home galaxy using neutrinos instead of visible light.
June 30, 2023
Sun activity archive for June 2023
Sun activity archive for June 2023. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
June 30, 2023
What is a derecho? A destructive, bow-shaped storm
A derecho tore across the Midwest on June 29, 2023. These dangerous storms pack strong winds and race over large areas of land. Learn more about derechos here.
June 29, 2023
Found! Long-sought gravitational wave background
Found at last! For the 1st time, researchers using pulsar timing arrays have found evidence for the elusive gravitational wave background.
June 29, 2023
What are gravitational waves? Ripples in spacetime
First postulated by Albert Einstein in 1916 but not observed directly until September 2015, gravitational waves are ripples in spacetime.
June 29, 2023
Life’s building blocks found in Orion Nebula
Scientists have found carbon compounds - life's building blocks - in a planet-forming disk, encircling a star in the famous Orion Nebula.
June 29, 2023
What is a heat dome? Southern U.S. feeling its effects
What is a heat dome and how does it affect those who are living under one? Learn more about this meteorological phenomenon here.
June 29, 2023
Uploading our minds to a computer may someday be possible
Scientists say that uploading our minds to a computer might one day be possible. But how soon will it be a reality? Learn more here.
June 28, 2023
