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How to watch a meteor shower. Tips for beginners.
You might be surprised to learn that interstellar space isn’t just vacuum. It’s full of gases, elements, and dust – very thinly spread, to be sure – but the building blocks of stars and planets.
If you were born in October, your birth month has 2 birthstones: opal and tourmaline.
Mira, in Cetus the Whale, varies in brightness over about 11 months. In late September 2020, it might be near its peak brightness, easily bright enough to be viewed with the eye alone.
The constellation Cassiopeia the Queen has the distinct shape of a W or M. Find her in the north-northeast sky on September and October evenings.
Comets are loosely packed balls of ice and dust orbiting our sun, that sometimes become visible in Earth’s skies. A comet’s tail may stretch across millions of miles of space.
Keep track of where NASA’s Mars 2020 Perseverance is on its journey through space toward its February 18, 2021, landing on Mars. This web app shows you where spacecraft is right now.
A brown dwarf is more massive than a planet, but less massive than a star. Exactly how much more and less?
Scientists call them 22-degree halos, because the shining ring around the sun (or moon) has a radius of approximately 22 degrees.
NOAA debunks some popular myths about lightning.
Moon sweeps by Jupiter and Saturn October 21 to 23
A close look at the Rosette Nebula