How to see Comet NEOWISE

Comet C/2020 F3 (NEOWISE) is basically a binocular object, although some experienced observers with pristine skies are reporting they can see it with the eye alone. This post has information and charts that will help you see the comet.

‘Astonishing discovery’ of massive prehistoric circle near Stonehenge

An ancient circle of deep trenches has been found near Stonehenge. Scientists say the newly discovery site offers insights into the lives of people who lived in the area 4,500 years ago.

10 years of the sun in 1 hour

A new timelapse from NASA’s SDO Observatory condenses an entire solar cycle into 1 hour.

Why fireflies light up

A firefly’s familiar glow is caused by a chemical reaction. Explanation here, plus many wonderful firefly photos.

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How do fireworks get their colors?

Many, perhaps most, fireworks displays have been canceled in 2020 due to the pandemic. Still, it’s fun to contemplate the fact that the beautiful colors in fireworks – so good at stirring our emotions – are created by chemistry.

For the 1st time, a visible light explosion from a black hole merger

In recent years, black hole mergers in our universe have been detected via ripples in spacetime known as gravitational waves. Now, for the first time, astronomers believe they’ve observed visible light from a black hole merger, in a peculiar 3-black-hole system.

Check out this sloth robot

SlothBot is a slow-moving and energy-efficient robot that can linger in the trees to monitor animals, plants, and the environment below.

M5, your new favorite globular cluster

Sure, M13, the Great Hercules cluster, is wonderful. But some amateur astronomers say this cluster, M5, is even better. How to find it in your sky.

July full moon comes on Sunday, July 5

July’s full moon is at 04:44 UTC on July 5, but it will look full before and after that date. What makes the moon look full?

Stunning images of the night

See the winners of the International Dark-Sky Association (IDA) 1st annual photography contest.

Astronomers discover 6 possible new exomoons

Astronomers from Western University in Canada have discovered six more possible exomoons orbiting distant exoplanets, in data from the Kepler Space Telescope.

At least 2 super-Earths orbit this red dwarf star

Astronomers from the University of Göttingen in Germany have discovered two, and possibly three, super-Earth exoplanets orbiting the nearby red dwarf star Gliese-887.

How dust could make some exoplanets more habitable

A new study from scientists in the UK suggests that atmospheric dust could increase the habitability of some exoplanets, especially those orbiting red dwarf stars.