Space weather is a fascinating subject, but one we still have a lot to learn about. One of the main components of it is the active regions (ARs) of the Sun. These huge concentrations of magnetic fields show up throughout the Sun’s photosphere and are the primary source of solar flares and coronal mass ejections (CMEs). They can be simple pairings of magnetic flux or huge, magnetically complex tangles that spend weeks creating massive solar storms before dissipating. But tracking the longest lived of these ARs has been a headache for solar physicists, and a recent paper by Emily Mason and Kara Kniezewski, published in The Astrophysical Journal, both dives into this tracking problem and uncovers some interesting features of the Sun’s most persistent ARs.
Space News & Blog Articles
Astronomers missed a space explosion as powerful as a billion suns — until they spotted its echo
A cosmic explosion with an energy equivalent to the output of a billion suns went unnoticed by astronomers until they caught the "echo" of this gamma-ray burst.
Rubin Observatory Detects Record-Breaking Asteroids
The Rubin Observatory has detected thousands of new asteroids, including several that spin a lot faster than expected for typical rubble piles.
3 weeks and 3 cargo departures for εpsilon
Video: 00:01:57
This video was published on social media by ESA astronaut Sophie Adenot with the following caption:
T-20 days: Smile to launch on 9 April
The Smile mission is set to launch on a Vega-C rocket from Europe’s Spaceport in French Guiana on Thursday 9 April at 08:29 CEST/07:29 BST/03:29 local time. Follow along as we communicate on the final preparations for launch. Journalists are invited to join online media briefings in English, French, Spanish, Italian and German.
A not-so-equal equinox: Why day beats night on the 1st day of spring
The spring equinox marks the first day of spring today, but daylight actually lasts several minutes longer than night. Here's why the equinox doesn't appear perfectly equal.
This Week's Sky at a Glance, March 20 – 29
The waxing Moon grows along the horns of Taurus, then passes first-quarter phase amid Jupiter and the heads of the Gemini twins.
Canada Allocates $200 Million Towards the Creation of Nation's First Spaceport
In a recent statement, Canadian Prime Minister Mark Carney announced that the federal government is investing $200 million towards Canada's first launch pad in Nova Scotia. The site is owned by Maritime Launch Services, a Canadian commercial space company founded in 2016 and headquartered in Halifax, Nova Scotia. This investment reflects the federal government's recently released Defense Industrial Strategy, issued by the Defense Industrial Agency (DIA). This document establishes aerospace and aerospace platforms as one of Canada's "key sovereign capabilities."
Live coverage: NASA to roll its SLS rocket back to the launch pad ahead of planned April flight of Artemis 2
NASA’s Space Launch System rocket and Orion spacecraft roll away from the Vehicle Assembly Building atop the Mobile Launcher 1 and crawler-transporter 2 on Friday, March 20, 2026. Image: John Pisani/Spaceflight Now
NASA’s Moon rocket began heading back to the launch pad after repairs inside the cavernous Vehicle Assembly Building at the Kennedy Space Center. The 322-foot-tall Space Launch System (SLS) rocket, atop the 400-foot-tall Mobile Launcher, will start the slow trek to the pad Thursday night.
These cotton candy exoplanets hide behind a haze even the James Webb Space Telescope can't penetrate
These worlds are among the least dense ever found, and all attempts to probe their atmospheres have been blocked by a mysterious smog.
The Crab Pulsar's Puzzling Emissions Finally Explained.
Most objects that astronomers and astrophysicists study have existed for billions of years. Things like supermassive black holes, the Milky Way galaxy, even the Sun and the Earth predate humanity by billions of years.
'A great relief!' Europe's Proba-3 solar-eclipse satellite phones home after a month of silence
One of the two spacecraft that make up Europe's Proba-3 solar-eclipse mission just reestablished contact with its handlers after being incommunicado for a month.
Sometimes You Get Lucky, Just Like the Hubble Did When It Caught This Comet Disintegrating
Some observations are the result of years of meticulous planning and cooperation between astronomers, different telescopes and observatories, and even different governments. Others are more serendipitous, and are little more than happy accidents. That's the case with the Hubble's recent observation of Comet C/2025 K1 (ATLAS) as it fragmented.
Earthshine will reveal the moon's hidden face this week — here's how to see it
Catch the soft glow of earthshine as a young crescent moon appears low after sunset.
How AI Is Reshaping Astronomy
Artificial intelligence is revolutionizing our world — and how we interpret the heavens above us.
Private South Korean rocket exploded last December due to hardware failure, investigation finds
The South Korean startup Innospace failed during its first orbital launch attempt, which sent five satellites aloft on Dec. 22 from Brazil.
Lego's first-ever Tintin set is coming next month and it's a space-themed Lego Tintin Moon rocket
If you're a fan of Lego, rockets or Tintin, (I am), you'll want the new Tintin Moon Rocket set, featuring six minifigures, available to purchase from April 1.
Explore the Worlds of Project Hail Mary
When Andy Weir published Project Hail Mary, he based his novel on two worlds. We explore these planet candidates — and why they probably don’t exist.
I talked to Andy Weir about the astrobiology behind 'Project Hail Mary'
The new film probes the possibility of alien life – here's how the science of Project Hail Mary stacks up.
NASA peers inside an asteroid | Space photo of the day for March 19, 2026
NASA has used advanced imaging techniques to peer inside samples of asteroid Bennu, discovering extensive networks of cracks running throughout the rock particles.
The Moon's Going To Get Crowded - We Should Protect Our Heritage On It While We Still Can
In 1959, the Luna 2 probe from the Soviet Union became the very first human-made object to reach our closest celestial neighbor. In the decades since, we have been leaving footprints - both literally and figuratively - all over the Moon. Today, there are over 100 metric tons of human-made material resting on the Moon’s surface - everything from advanced cameras and sensors to literal human waste. But that’s nothing compared to what’s to come. NASA predicts the next decade will see over 100 new lunar missions, equaling or exceeding all the missions previously flown. Which brings up a pressing question about all the stuff that’s already there - how do we protect that history? A new paper by Teasel Muir-Harmony, the Curator of the Space History Department of the Smithsonian and Todd Mosher, a Scholar in Residence at University of Colorado, Boulder, reports on a Smithsonian National Air and Space Museum and the American Institute of Aeronautics and Astronautics Summit on Outer Space Heritage that dives into the legal, scientific, and engineering hurdles of preserving these historic sites.

