Posts by 

Theresa Wiegert

The closest extragalactic fast radio burst yet?

Astronomers detected a new, nearby, repeating fast radio burst, originating from a spot near the great spiral galaxy M81.

Hummingbird having a spring meal

Hummingbirds can fly up to 20 miles (32 km) in a day and are now traveling north, some all the way from Central America to Canada and even Alaska. This beautiful hummingbird was captured feeding from blossoms in California this week.

A new Goldilocks black hole

Astronomers have detected a "Goldilocks" or intermediate-mass black hole. It's not small, not supermassive - but right in the middle - and it "sheds light" on how the supermassive black holes got so large.

ISS passing a mineral moon

What's a mineral moon? In this case, it's a photo of our moon with the colors of its surface enhanced to reveal the moon's mineral deposits. As an added bonus, here's a mineral moon with the International Space Station passing by!

New image of M87’s supermassive black hole

The Event Horizon Telescope collaboration released a new image of the supermassive black hole in the center of massive galaxy M87 on March 24, 2021. The image shows the signatures of a magnetic field.

Milky Way mosaic took 12 years, 1250 hours

Through 12 years of photographing and stitching together individual astrophotography images, Finnish astrophotographer J-P Mestavainio has created a 1.7 gigapixel panorama of our Milky Way galaxy.

A supermassive black hole on the move

Astronomers have discovered a restless supermassive black hole that's moving within its galaxy.

Olympus Mons volcano on Mars, from UAE’s Hope

United Arab Emirates' Hope spacecraft has begun producing images of Mars's surface, including a view of Olympus Mons, highest volcano in the solar system.

Highest-energy cosmic rays originate in star clusters, not supernovae

New research solves a decades-long riddle: from where do the highest-energy cosmic rays originate? Even supernovae - exploding stars - can't explain them. Now it seems these sorts of cosmic rays may come from clusters of young, hot, massive stars.

New images from China’s Tianwen-1 at Mars

The Tianwen-1 mission entered Mars orbit at the end of February. It's expected to land a rover on Mars' surface in May. In the meantime, check out these new images from the Tianwen-1 orbiter.