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EarthSky Voices

Shape of a supernova detected 1 day after explosion

Astronomers used quick work to point a telescope at a supernova blast and detected the shape of a supernova just one day later.

Whoa! Universe’s expansion slowing down?! See a video

We thought we lived in a rapidly accelerating expanding universe after all. But new research suggests the universe's expansion is already slowing.

Black hole record: Brightest and most distant flare yet

Astronomers have found the biggest and most distant black hole flare yet. It was likely caused by a massive star too close to a supermassive black hole.

Look out our galaxy’s south window, into intergalactic space

Use the Great Square of Pegasus to locate Fomalhaut. Then you're on your way to looking out our galaxy's south window into intergalactic space.

A view of the Milky Way galaxy in unprecedented radio color

Astronomers released a new radio view of our Milky Way galaxy on October 29, 2025. It's the largest low-frequency radio color image of the Milky Way yet.

Why were prehistoric insects so enormous?

Hundreds of millions of years ago, giant insects were common on Earth. In fact, prehistoric insects were here before the dinosaurs!

Madagascar: The island split in 2 by time

A new study found Madagascar formed after 2 great rifting events. First it tore from Africa 170 million years ago and then from India 90 million years ago.

This dead star is still shredding its planetary system

Astronomers have discovered a dead star is still shredding the remains of its ancient planetary system. The metallic debris is spiraling onto the white dwarf.

Covid vaccine could help cancer patients fight tumors

A new study has found that the Covid vaccine stimulated the immune system of cancer patients to attack tumors. Read more about this encouraging research.

Here’s where popular witch icons originated

Witch icons like black hats, cauldrons, broomsticks and black cats stem from medieval fears and still haunt Halloween and pop culture today.