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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.
Take a couple of minutes and have a little fun with this new video from NASA
A sign of the changing season, Sirius – the sky’s brightest star – is visible before sunup. You’ll know it’s Sirius if the very noticeable 3 stars in Orion’s Belt point to it.
Can you hear a meteor as it streaks overhead? Some people have reported hearing meteors with a sizzling sound like bacon frying. Scientists now say you can, and explain how it happens.
A small but evolving dent in Earth’s magnetic field can cause big headaches for satellites.
Equinox sun is over Earth’s equator
Cool new Hubble portrait of Jupiter’s storms