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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.
A strikingly beautiful view of a delicate bubble of expelled material around the exotic red star U Antliae helps astronomers understand how stars evolve during the later stages of their life-cycles.
The Cassini spacecraft has become part of Saturn, the planet it studied so spectacularly and so long. Cassini’s last images and final moments, here.
Like the ruby, the sapphire is a form of the mineral corundum, a normally drab grey mineral.
Can you imagine a sky so laden with soot that all of Earth stayed dark for 2 years? New research suggests it happened, at the end of the age of the dinosaurs.
You’ll always know it’s the sky’s brightest star, Sirius, if the very noticeable 3 stars in Orion’s Belt point to it.
Here’s another way to find this galaxy. Try star-hopping from the Great Square of Pegasus.
In 2018, there are 13 full moons and 12 new moons, but only 5 eclipses – 2 lunar and 3 solar.
Happy birthday August babies! Your month has 2 birthstones, peridot and sardonyx.
Jellyfish float on ocean currents, but they also swim in a couple of different ways. This post has 2 videos showing 2 different jellyfish propulsion mechanisms.
Cassiopeia, Queen of the north
Sirius in many colors