Space

Deep beneath the ice in Greenland and Antarctica, researchers have found signs of an enormous solar ‘tsunami‘ that once crashed against Earth’s atmosphere more than 9,000 years ago. This ancient superstorm was triggered by a wave of hot plasma and magnetism from the Sun, and it is significantly larger than anything we have recorded in

We might finally have an explanation for mysterious shadows of falling material in the atmosphere of the Sun, observed during solar flares. First spotted in 1999, these mysterious streaks of shadow – referred to as “downward-traveling dark voids” – were thought to be related to the magnetic field interactions that trigger solar eruptions. Now, solar

A new image of the heart of the Milky Way is revealing mysterious structures we’ve never seen before. Taken using the ultra-sensitive MeerKAT radio telescope in South Africa, the images show nearly 1,000 strands of magnetic filaments, measuring up to 150 light-years in length, in surprisingly neat and regular arrangements. That’s 10 times the number

A chunk of a SpaceX rocket that blasted off seven years ago and was abandoned in space after completing its mission will crash into the Moon in March, experts say. The rocket was deployed in 2015 to put into orbit a NASA satellite called the Deep Space Climate Observatory (DSCOVR). Since then, the second stage

Something in Earth’s cosmic neighborhood is emitting weird signals of a kind we’ve never seen before. Just 4,000 light-years away, something is flashing radio waves. For roughly 30 to 60 seconds, every 18.18 minutes, it pulses brightly, one of the most luminous objects in the low-frequency radio sky. It matches the profile of no known

A rare treasure that could shed light on the evolution of black holes has been discovered in the Milky Way’s closest large galactic neighbor. In a cluster of stars in the Andromeda galaxy, aka M31, astronomers studied changes in light to identify a black hole clocking in at almost 100,000 times the mass of the

The likelihood of lakes of liquid water hidden under Mars‘ southern polar ice cap is receding before our very eyes. Last year, a paper found that temperatures were likely far too cold for water to remain unfrozen in the region. Now, a new study has found that the radar signal interpreted as liquid water was

The James Webb Space Telescope has fired its thrusters and reached its orbital destination around a million miles (1.5 million kilometers) away from our planet, NASA said Monday, a key milestone on its mission to study cosmic history. At around 2:00 pm Eastern Time (1900 GMT), the observatory fired its thrusters for 5 minutes in

After a series of eruptions on the Sun, Earth may be in for auroras over the next few days. A sunspot called AR2929 has emitted two solar flares, accompanied by coronal mass ejections. Although neither was directed at Earth, the ejections that are currently blasting through space may deliver glancing blows to our planet’s atmosphere that

The Solar System may be an even soggier place than we suspected. New analysis of one of Saturn’s moons suggests that it may harbor a liquid ocean. No, not the usual suspects – the new culprit is Mimas, the little moon with a big crater, which gives it more than a passing resemblance to the

The ongoing volcanic eruption in Tonga began in December 2021, but it wasn’t until 5:15 pm local time on January 15, 2022, that the powerful explosion occurred. It generated an enormous cloud of ash, earthquakes, and tsunamis that reached as far as the distant coastlines of Peru on the other side of the Pacific. Now

We often think of supernova explosions as inevitable for large stars. Big star runs out of fuel, gravity collapses its core, and BOOM! But astronomers have long thought at least one type of large star didn’t end with a supernova. Known as Wolf-Rayet stars, they were thought to end with a quiet collapse of their core

Because we can’t see black holes, it’s hard to know exactly how many are out there in the big, wide Universe. But that doesn’t mean we have no means of trying to figure it out. Stellar-mass black holes are the collapsed cores of dead massive stars, and new research incorporating how these stars and binaries

With the rapid expansion of commercial space, there is a growing number of satellites in orbit around our planet. Most of these are in low-Earth orbit, which is becoming increasingly crowded. This has led some to be concerned about a catastrophic rise of space debris, as well as a growing frustration by astronomers due to

As it’s the foundation for all life on Earth, discovering carbon on other planets always gets scientists excited – and the Curiosity Rover on Mars has found an unusual mix of the chemical element that could hypothetically point to the existence of alien life. That’s by no means certain, but it’s a possibility. It’s one

A new image of the Flame Nebula shows the interstellar cloud as we’ve never seen it before. A team of astronomers using the Atacama Pathfinder Experiment (APEX) telescope has captured the star-forming region in radio wavelengths, revealing details that we had never seen before. The Flame Nebula, which is close to the famous Horsehead Nebula,

In a slow-moving universe, asteroids give us a rare chance to see things moving in real time. We have such a chance coming right up on the evening of Tuesday, January 18th, when 1.1-kilometer asteroid (7482) 1994 PC1 passes 1.23 million miles (1.98 million kilometers) from Earth. This is about five times the distance from

The human body did not evolve to handle life in space, and it shows in our very blood. Since our species first started to spend extended periods of time beyond our planet, researchers have noticed a curious and consistent loss of red blood cells among astronauts. The phenomenon is called ‘space anemia’, and until recently,

Beyond the Solar System, out there in the wider galaxy, a very strange subset of exoplanets exists. Called hot Jupiters, these are majorly clingy – hugging so close to their host stars, they’re not just intensely hot, but also likely warped by gravitational forces. Now, for the first time, astronomers have actually detected the warped

It’s been half a century since the Apollo missions returned from the Moon, and yet the lunar samples they brought home continue to baffle us. Some of these rocks are more than 3 billion years old and appear to have been formed in the presence of a strong geomagnetic field, like the one on Earth.

The Dark Energy Spectroscopic Instrument (DESI), currently pointed at the skies from its home in the Nicholas U. Mayall Telescope at the Kitt Peak National Observatory in Arizona, is tasked with charting the expansion of space, investigating dark energy, and creating the most detailed 3D map of the Universe that’s ever been put together. It’s only

A small pile of pebbles is clogging up the Perseverance Mars rover’s operations.   The rover, which is collecting rock samples for eventual return to Earth, began to struggle on Dec. 29, after extracting a core from a rock the mission team nicknamed “Issole.” According to a NASA blog, the problem occurred in the device that transfers the

New Year’s Day comes around once every 47.5 hours on the roughly Neptune-sized exoplanet TOI 674b, which makes it something of a rare creature.  In spite of years of hunting, surprisingly few middle-sized gas giants have ever been seen with orbits shorter than a few days in length, creating what astronomers refer to as a

To date, we’ve found over a hundred precious Mars rocks that have travelled from the red planet and landed on Earth at some point. Among those, specimen ALH84001 might well be one of the most enigmatic. This meteorite fragment was picked up during a snowmobile ride in the ice field of Alan Hills in Antarctica in

The Milky Way should be absolutely riddled with moons, when you think about it. The Solar System has 8 official planets, yet at least 25 times as many moons. However, while we’ve confirmed nearly 5,000 exoplanets (that’s planets outside the Solar System) to date, exomoons are scant, to say the least. One tentative detection was made in

Located in the Okanagan Valley outside of Penticton, British Columbia, there is a massive radio observatory dedicated to observing cosmic radio phenomena. It’s called the Canadian Hydrogen Intensity Mapping Experiment (CHIME), a cylindrical parabolic radio telescope that looks like what snowboarders would call a “half-pipe”. This array is part of the Dominion Radio Astrophysical Observatory

Ever since scientists made the first detection of gravitational waves from a pair of colliding black holes in 2015, evidence has been growing that the Universe ought to be full of them. Every massive event – every black hole or neutron star merger, every supernova – should have sent gravitational waves ringing out across space-time.

The Solar System floats in the middle of a peculiarly empty region of space. This region of low-density, high-temperature plasma, about 1,000 light-years across, is surrounded by a shell of cooler, denser neutral gas and dust. It’s called the Local Bubble, and precisely how and why it came to exist, with the Solar System floating

Because they emit nothing we can detect, there are many things about black holes we simply do not know. Amongst the most perplexing are supermassive black holes, millions to billions of times the mass of our Sun. Since black holes form from the cores of massive dead individual stars, how do supermassive behemoths grow so

When China’s Chang’E-5 probe visited the Moon in December of 2020, it didn’t just collect a sample of lunar material to return to Earth. While it was there, the mission took observations of the surrounding lunar rock – data vital for contextualizing the sample in future studies. Those observations have turned out to be a

Earth and Jupiter don’t have a lot in common. One is relatively small, rocky, and habitable. The other is absolutely enormous, completely lacking in solidity, and raging with colossal storms. Yet, if you look at some satellite pictures of marine phytoplankton blooms here on Earth next to pictures of atmospheric turbulence at Jupiter’s poles, it

China’s mysterious “Moon cube” is a mystery no longer. The big reveal: It’s a rock that’s not even shaped like a cube. The nation’s Yutu-2 rover discovered the object – which appeared to be a gray cube looming on the lunar horizon – in early December. The China National Space Administration (CNSA) dubbed it ‘mysterious hut’, playfully

We can all let out a collective sigh of relief. With its primary mirror array fully unfolded, the major components of the beleaguered James Webb Space Telescope are now deployed, and it continues to calmly make its way to its destination. The deployment, completed on 8 January 2022, marks a pretty important milestone for the

In a nearby galaxy, a rare kind of dead star erupted into a giant outburst. This in itself may not be so peculiar; but, for the first time, changes in its brightness during this event have been documented in detail, giving scientists a window into understanding the processes that produce these colossal flares. The star

Most Universe Today readers are familiar with nebulae. They’re gaseous structures lit up with radiation from nearby stars, and they’re some of nature’s most beautiful forms. With the help of amateur astronomers who laid the groundwork, an international team of astronomers has discovered a new type of nebulae around binary stars that they’re calling galactic

We’re seeing many spectacular sights out in space as our telescopes become more powerful, but there’s a new contender for the most exciting one yet: According to researchers, we’ve observed a red supergiant star exploding into a supernova for the first time. Supernova (SN) 2020tlf, to give it its technical name, was watched for 130

Before Earth and the other planets in our Solar System existed, the Sun may have been surrounded by giant rings of dust similar to Saturn’s, according to a new study.   Those rings of dust may have prevented Earth from growing into a “super-Earth” – a type of planet that is about twice the size of Earth and

We can all breathe a bit easier now. In spite of a launch bedeviled by problem after problem, NASA’s James Webb Space Telescope is finally in space, making its way to its new home. And if you needed a little reassurance that this is the case (which is totally understandable), the European Space Agency has

Roughly 13.8 billion years ago, our Universe was born in a massive explosion that gave rise to the first subatomic particles and the laws of physics as we know them. About 370,000 years later, hydrogen had formed, the building block of stars, which fuse hydrogen and helium in their interiors to create all the heavier

A large, rocky asteroid is going to fly by Earth next week. At 1 kilometer (3,280 feet) long, it’s roughly two and a half times the height of the Empire State Building, and it’s been classed a “Potentially Hazardous Asteroid” due to its size and its regular close visits to our planet. But don’t worry,

The James Webb Space Telescope fully deployed its tennis-court sized sunshield Tuesday, a critical milestone for the success of its mission to study every phase of cosmic history, NASA said. “All five layers of the sunshield are fully tensioned,” said an announcer at the observatory’s control center in Baltimore, where team members cheered, a live

High above the red planet, China’s Mars orbiter Tianwen 1 has captured a series of incredible, alien images of our neighboring planet. The shots were captured by a small camera that was deployed by Tianwen 1. Released on New Year’s Day, they show Tianwen 1, looking lonely above the red planet, as well as Mars’

There are a lot of unexplained objects out there in the Universe, and astronomers have just found another one – a strange, dusty object that may be causing its host star to dim by up to 75 percent. Often, when we see something block out the light of its star it’s an exoplanet or asteroid.

The image above may look like a fairly normal picture of the night sky, but what you’re looking at is a lot more special than just glittering stars. Each of those white dots is an active supermassive black hole. And each of those black holes is devouring material at the heart of a galaxy millions

In 2014, amateur astronomers in New Zealand glimpsed a flare of light emanating from the constellation of Centauri. NASA later confirmed this blaze was a massive supernova explosion from another galaxy an incredible 57 million light-years away from our Milky Way. “Dedicated amateur astronomers often make intriguing discoveries – particularly of fleeting astronomical phenomena such

After a detailed analysis of where the James Webb Space Telescope is now (29 December 2021) and how it got there, NASA determined the observatory should have enough propellant to operate in space for significantly more than 10 years in space. Webb’s mission lifetime was designed to be at least 5-1/2 years, and mission engineers

It might not look like much, but here is the first monumental image from the Double Asteroid Redirection Test (DART). Earlier this month, a circular door covering the aperture of its DRACO telescopic camera was opened, allowing the camera to take its first image.   Now, imagine what the camera’s last image will be like: a REALLY closeup

Astronomers have captured a breathtaking radio wave image, showing our closest radio active black hole spewing out massive jets of plasma that span more than 16 times the size of the full moon in our sky. The supermassive black hole in question is located in the center of the galaxy Centaurus A around 12 million