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.

Square image with green background with a hummingbird in the centre, feeding off of white flowers on twigs.

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.

Colorful diagram of bent lines passing around object between bright star and Earth.

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.

Full moon with colors emphasized, and a band of the silhouette of the international space station passing by on the diagonal.

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!

yellow-orange donut-shape on black background.

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.

Dense star field with yellowish white and blue swirls and clouds.

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 an orange ball of light, with a black ball of light at its center.

A supermassive black hole on the move

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

Close-up of the surface of Mars, in a beige hue. One large dark spot to the right in the image, Olympus Mons, and 3 other spots to its right, which are its sister volcanoes.

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.

Large green, yellow and red cloud-like blotches with white speckles.

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.

Rusty red surface of planet Mars, photographed from orbit, small blue logo in corner of photo.

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.