The sunspot AR3835 erupted on Sunday (Sept. 22) during Earth's equinox when even a glancing blow can cause a geomagnetic storm.
Space News & Blog Articles
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China's astronauts conduct emergency drills and deploy payloads into space (video)
Life remains busy for the astronauts aboard China's Tiangong space station, with a range of drills, maintenance and experiments to carry out.
Soyuz brings two cosmonauts, NASA astronaut back to Earth after record-setting mission
The Soyuz MS-25/71S spacecraft carrying commander Oleg Kononenko, Nikolai Chub and NASA astronaut Tracy Dyson undocked from the International Space Station early Monday as the two spacecraft were passing 260 miles above eastern Mongolia. Image: NASA
Cosmonaut Oleg Kononenko, now the world’s most experienced spaceman, first-time flier Nikolai Chub and NASA veteran Tracy Dyson undocked from the International Space Station and returned to Earth Monday, closing out a record-setting mission with a picture-perfect landing in Kazakhstan.
Those Aren't Dyson Spheres, They're HotDOGs
If there really are advanced alien civilizations out there, you’d think they’d be easy to find. A truly powerful alien race would stride like gods among the cosmos, creating star-sized or galaxy-sized feats of engineering. So rather than analyzing exoplanet spectra or listening for faint radio messages, why not look for the remnants of celestial builds, something too large and unusual to occur naturally?
How dark energy could relieve 'Hubble tension' and galaxy headaches
The Hubble tension, a longstanding problem in cosmology, could potentially be relieved if early dark energy is taken into account.
A New Catalog Charts the Evolution of the Universe Over Time
An atlas doesn’t seem to be an essential item in cars these days but think about them and most people will think about distances. An atlas of the stars not only covers distances but must also take into account time too. The Andromeda galaxy for example is so far away that its light takes 2.5 million years to reach us. A team of researchers have now built a catalogue that contains information on millions of galaxies including their distance and looks back in time up to 10 billion years!
The largest Einstein Cross ever discovered dwells among a rare 'carousel' of galaxies
The largest Einstein Cross dwells among a rare arrangement of seven gravitationally lensed galaxies called the Carousel Lens located between 7 billion and 12 billion light-years from Earth.
Soyuz MS-25 lands from ISS with NASA astronaut and record-setting cosmonauts (video)
Three crewmates have landed Earth after a record-long stay on the International Space Station (ISS) for two of them. For one, the 374 days has amounted to only a third of his total time in space.
Astronomers catalog over 500 extremely powerful cosmic explosions
Astronomers have cataloged over 500 gamma-ray bursts, which are some of the most violent explosions in the cosmos.
Did a Ring of Rocks and Dust Orbit Earth Before the Dinosaurs Roamed?
A team of scientists thinks a clustering of ancient impact craters points to a temporary ring around Earth hundreds of millions of years ago.
Hera planetary defence mission: solving asteroid mysteries
Video: 00:03:12
There’s a mystery out there in deep space – and solving it will make Earth safer. That’s why the European Space Agency’s Hera mission is taking shape – to go where one particular spacecraft has gone before.
Sentinel-1B journeys back to Earth
The Sentinel-1B satellite, the second satellite of the Copernicus Sentinel-1 mission, completed its disposal process – which included lowering its orbit and passivating its systems to ensure re-entry into Earth’s atmosphere within 25 years.
This Might Be the Best Gravitational Lens Ever Found
A gravitational lens is the ultimate funhouse mirror of the Universe. It distorts the view of objects behind them but also supplies amazing information about distant galaxies and quasars. Astronomers using Hubble Space Telescope (HST) recently released a new image of one of these weird apparitions called “The Carousel Lens”. It’s a rare alignment of seven background galaxies that all appear distorted by an intervening galaxy cluster.
High-Resolution Images of the Sun Show How Flares Impact the Solar Atmosphere
Solar flares are a fascinating thing and have a profound effect on what astronomers refer to as “space weather.” These events vary with the Sun’s 11-year solar cycle, releasing immense amounts of radiation across the electromagnetic spectrum (from extreme ultraviolet to X-rays) into space. The effects of flares have been observed since time immemorial, which include aurorae at high latitudes (Aurora Borealis and Australis), but have only been the subject of study and prediction for about a century and a half. Still, there is much that remains unknown about these dramatic events.
Researchers Mimic Extracting Energy From Black Holes in the Lab
When you get close to a black hole, things can get pretty intense. The tremendous gravity can squeeze gas to ionizing temperatures, and fierce magnetic fields can accelerate plasma into jets speeding at nearly the speed of light. That’s a lot of power, and wherever there is power someone will figure out how to harness it.
SpaceX's Crew-9 astronaut flight for NASA launches this week. Here's how it turned into a rescue mission
SpaceX's Crew-9 mission to the International Space Station on Sept. 26 will be a rescue mission of sorts, bringing up empty seats for two NASA astronauts currently in space without a ride home.
How Canada is preserving what remains of its iconic supersonic Avro Arrow jet
Canada's Avro Arrow supersonic jet was suddenly canceled in 1959, a controversial decision that benefited NASA. How is Canada preserving the few pieces of the aircraft that remain?
Watch NASA astronaut, 2 record-breaking cosmonauts head home to Earth on Sept. 23
A NASA astronaut and two record-setting Russian cosmonauts are set to head back to Earth on Monday (Sept. 23), and you can watch their homecoming live.
Autumnal equinox 2024 brings fall to the Northern Hemisphere today
The autumnal equinox brings fall to the Northern Hemisphere today as the sun passes directly over the equator at noon. But are day and night actually equal length today?
Advanced Civilizations Will Overheat Their Planets Within 1,000 Years
Earth’s average global temperatures have been steadily increasing since the Industrial Revolution. According to the National Oceanic and Atmospheric Agency (NOAA), Earth has been heating up at a rate of 0.06 °C (0.11 °F) per decade since 1850 – or about 1.11 °C (2 °F) in total. Since 1982, the average annual increase has been 0.20 °C (0.36 °F) per decade, more than three times as fast. What’s more, this trend is projected to increase by between 1.5 and 2 °C (2.7 to 3.6 °F) by mid-century, possibly more! This is a direct consequence of burning fossil fuels, which has increased exponentially since the mid-19th century.
What the 1st analysis of China's Chang'e 6 lunar far side samples revealed
In late June, the Chang'e 6 lunar lander returned to Earth with samples of the moon. Now, the first paper about these samples has been published.
