Astronomy ambassadors to Chile: ALMA radio telescope

Learn what it would be like to travel to Chile – sometimes called astronomy’s world capital – in this final report from Robert Pettengill with the Astronomy in Chile Educator Ambassador Program. Thank you for your dispatches, Rob!

Snow algae thrives in some of Earth’s most extreme conditions

A new study found snow algae in tall ice structures high in the Chilean Andes. Researchers don’t entirely understand how the algae are able to bloom.

Large 2019 dead zone in Gulf of Mexico

This year’s Gulf of Mexico dead zone of oxygen-depleted waters is the 8th largest ever recorded.

Andromeda galaxy, closest large spiral

The Andromeda galaxy is the closest big galaxy to our Milky Way. At 2.5 million light-years, it’s the most distant thing you can see with the eye alone. The moon is waning. It’s the right time of year. Time to start looking! 

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Chandrayaan-2 is on its way to the moon

Following a series of successful maneuvers, India’s Chandrayaan-2 spacecraft has shifted trajectories and is now on its way to the moon.

It’s raining plastic in the Rocky Mountains

A USGS study identified plastic in more than 90% of rainwater samples taken from across Colorado.

Microplastics found in Lake Tahoe

Research at one of the world’s clearest, cleanest lakes suggests the problem of microplastics is widespread in freshwater systems and not just in oceans.

Did these tardigrades survive crash-landing on the moon?

When Israel’s Beresheet lunar spacecraft crashed in April 2019, there were thousands of microscopic, dehydrated tardigrades – water bears – aboard.

What are the full moon names?

Lists of common full moon names – both by month and by season – for North America.

Check out these interacting galaxies

Hubble image of an interacting galactic duo known as UGC 2369.

Update on India’s Chandrayaan-2 moon mission

Tomorrow, the spacecraft will shift from its orbit of Earth toward a path to the moon.

Astronomers see a new type of pulsating star

At Palomar Observatory near San Diego, a dedicated telescope spends its nights surveying the heavens. A recent analysis of its data revealed 4 stars that change in brightness, over just minutes.

What is the moon illusion?

It’s nearly full moon. So you might see an extra-large-looking moon low in the sky, one evening soon. Why does the moon look so big? It’s because of the “moon illusion,” a trick your brain is playing.