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EarthSky Voices

How likely is a doomsday asteroid swarm from Comet Encke?

Astronomers studying the debris that causes the Taurid meteor shower said it's unlikely there's a doomsday asteroid swarm hidden in the debris.

Alpheratz belongs to Andromeda, but is part of the Great Square

Alpheratz appears to our eyes as a single star but it is actually a close binary star system. Many stargazers use it to locate the Andromeda galaxy.

Centaur jets? Webb detects jets of gas on distant icy body

Webb detected jets of carbon monoxide and carbon dioxide gas on a distant icy centaur. This may shed light on the formation and evolution of the solar system.

Biobots are a 3rd state between life and death

Biobots are tiny, multicellular robots powered by living cells to perform tasks, and they're a third state between life and death.

An uncommonly strong atmospheric river in Pacific Northwest

A powerful atmospheric river swept through the Gulf of Alaska in September 2024. The storm made landfall as Category 5, the highest tier on the scale.

Will you see colors in aurora? Or do you need a camera?

If you live below 50 degrees N. latitude, any aurora visible is likely to be low on your horizon, and you're less likely to see vivid colors.

Is cosmology at a tipping point? Is new physics ahead?

The standard model has done an exceptional job explaining cosmology. But there are problems. Will new observations be a tipping point toward new physics?

We’re getting better at seeing asteroids that may hit Earth

Astronomers are getting better at spotting asteroids, such as the asteroid that hit Earth near the Philippines on September 5, 2024. Read more.

Dark matter black holes could make Mars wobble

MIT researchers believe dark matter exists in the form of tiny black holes. Those black holes may cause Mars' orbit to wobble, making them detectable.

Black hole duo will merge in a distant galaxy

A black hole duo is headed for a collision. The active central black holes of 2 distant merging galaxies are only 300 light-years apart.