Monday, February 4, 2019

Feb 4 - A New, Nearby Galaxy

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Close-up of a part of the globular cluster NGC 6752. Look closely - left side of image - and you'll see a previously unknown dwarf galaxy in the background. Image via SpaceTelescope.org.

Astronomers find a new, nearby galaxy

Astronomers studying a globular star cluster accidentally discovered a more-distant galaxy behind it. The little galaxy is 30 million light-years away and is nicknamed Bedin 1. The videos in this post let you go there.

Small asteroid disintegrates over Cuba in daylight

The space rock traveled over West Palm Beach, above the Florida Keys, and then to Viñales, a town in Pinar del Río, Cuba. It left a smoke trail seen by many. Images and video here.

How Titan cooked its atmosphere

Saturn's largest moon Titan has a thick nitrogen atmosphere - unique among all the moons in the solar system. A new study suggests the atmosphere originated from organics being "cooked" in Titan's interior. Read more.

Saturn's large moon Titan, with Mimas, another moon of Saturn, in the foreground, as seen by the Cassini spacecraft in 2013. Titan’s atmosphere is thick and hazy, and mostly nitrogen, like Earth’s. Where did the nitrogen come from? Image via NASA/JPL-Caltech/Space Science Institute.

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Tonight … Locate Cassiopeia the Queen

An earlier name for Cassiopeia was Cassiopeia's Chair. A legend from ancient Greek mythology explains why. Read more.

Speedy comet approaching Earth's vicinity

View larger at EarthSky Community Photos. | Emilio Lepeley in Elqui Valley, Vicuna, Chile, caught comet C/2018 Y1 (Iwamoto) - the green fuzzball at bottom center - on February 3, in the same field of view as the famous Sombrero Galaxy. Thank you, Emilio! Read more.

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