Universe Today

June 12, 2023June 12, 2023 by Andy Tomaswick

Two English Companies are Cooperating to Bring a Novel Antenna Architecture To Space

Technology Readiness Levels (or TRLs) are commonly used in the space industry to determine what level of development a technology has undergone. For space technologies, eventually, they get to a TRL where they have to be used in space. In some cases, that can be difficult, as getting a ride on a launch is both risky and expensive. So it’s good news for Oxford Space Systems (OSS) that they penned an agreement with Surrey Satellites Technology Ltd (SSTL) to prove one of their new technologies on an actual flight.

June 12, 2023June 12, 2023 by Scott Alan Johnston

These are the Fastest Stars in the Galaxy

Artist concept showing a hypervelocity star escaping our galaxy. Credit: NASA, ESA, and G. Bacon (STScI)

Until recently, there were only ten known stars on trajectories that will allow them to escape the Milky Way Galaxy, thrown astray by powerful supernova explosions. A new study using data from ESA’s Gaia survey this June has revealed an additional six runaways, two of which break the record for the fastest radial velocity of any runaway star ever seen: 1694 km/s and 2285 km/s.

June 12, 2023June 12, 2023 by Nancy Atkinson

Thierry Legault’s Stunning Views of the Space Station (with spacewalking astronauts) Crossing in Front of Sunspots

The International Space Station transiting the Sun -- and two large sunspots --on June 9, 2023. Additionally, two astronauts, Steve Bowen and Woody Hoburg were outside the ISS on a spacewalk while this image was taken. Credit and copyright: Thierry Legault.

He’s done it again, outdoing even his own incredible work.

Over the years, we’ve written many articles to share the beautiful and mind-bending astrophotography of Thierry Legault. Each year he seems to come up with ideas to try to surpass even his own craziest attempts of astrophotography feats – such as capturing spy satellites in orbit, or snapping pictures of the International Space Station (ISS) transiting the Sun during a solar eclipse.

Now, he was able to take pictures of the ISS transiting the Sun while two astronauts were doing a spacewalk. As an added challenge, Legault made sure he was in the right place at the right time so he could capture the ISS (and astronauts) while they were passing by three enormous sunspots.

WHAT??

June 11, 2023June 11, 2023 by Andy Tomaswick

The Sun Reaches Solar Maximum in 2032. A new NASA Flagship Mission Could Give Us a Perfect View

There are always more space missions than there is money to support them. Ultimately, some make the funding cut, and some do not. Various factors go into that decision, though those factors can change over the years and decades that some of these missions are designed to take. But the more ideas, the better, and now a new idea has sprung up from a group of scientists at SWRI, NASA, and the University of Minnesota, among others. It involves four different probes sent to various points in the solar system to observe the Sun as it has never been seen before – and just in time to see its most spectacular display in 2032.

June 11, 2023June 11, 2023 by Paul M. Sutter

We Might Soon Detect the Gravitational Waves from Dying Stars

Artist's impression of a supernova remnant. Credit: ESA/Hubble

Researchers have discovered an exciting new source of gravitational waves. They are the remnants left over from a supernova explosion, and they may just reveal the secrets to how those explosions work.

June 10, 2023June 14, 2023 by Paul M. Sutter

Why Didn’t the Big Bang Collapse in a Giant Black Hole?

This is an artist’s impression of a black hole drifting through our Milky Way galaxy. The black hole is the crushed remnant of a massive star that exploded as a supernova. The surviving core is several times the mass of our Sun. The black hole traps light because of its intense gravitational field. The black hole distorts the space around it, which warps images of background stars lined up almost directly behind it. This gravitational "lensing" effect offers the only telltale evidence for the existence of lone black holes wandering our galaxy, of which there may be a population of 100 million. The Hubble Space Telescope goes hunting for these black holes by looking for distortion in starlight as the black holes drift in front of background stars. Credit: ESA

Despite the enormous densities, the early universe didn’t collapse into a black hole because, simply put, there was nothing to collapse into.

June 10, 2023June 10, 2023 by Andy Tomaswick

What Role Will NASA Play In Developing ISRU On The Moon?

An illustration of a Moon base that could be built using 3D printing and ISRU, In-Situ Resource Utilization. Credit: RegoLight, visualisation: Liquifer Systems Group, 2018

Space agencies will play a vital role in the developing space economy, especially in the beginning. But what will the part of the biggest of all space agencies be when considering how space resources, especially those on the Moon, are accessed? NASA has a plan for that as it does for so many other things – and this article will dig into a slideshow that describes that plan in detail.

June 9, 2023June 9, 2023 by Carolyn Collins Petersen

Parker Solar Probe Flies Close Enough to the Sun to See the Source of the Fast Solar Wind

NASA's Parker Solar Probe studies the fast solar wind and its origins on the Sun. Credit: NASA

Where does the solar wind come from? That’s a question solar physicists have wanted an answer to for decades. Now, the Parker Solar Probe is showing them exactly where this stream of particles exits our star on a journey out through interplanetary space.

June 9, 2023June 12, 2023 by Brian Koberlein

Has JWST Finally Found the First Stars in the Universe?

Artist's view of several Population III stars. Credit: NASA/WMAP Science Team

In astronomy, elements other than hydrogen and helium are called metals. While that might make your high-school chemistry teacher cringe, it makes sense for astronomers. The two lightest elements were the first to appear in the universe. They are the atomic remnants of the big bang and make up more than 99% of atoms in the universe. All the other elements, from carbon to iron to gold, were created through astrophysical processes. Things like nuclear fusion in stellar cores, supernova explosions, and collisions of white dwarfs and neutron stars.

June 9, 2023June 9, 2023 by Matt Williams

If We Can Master Artificial Photosynthesis, We Can Thrive in Space

Illustration of a photobioreactor as a means of growing building materials on Mars. Credit: Joris Wegner/ZARM/Universität Bremen

By 2030, multiple space agencies will have sent astronauts to the Moon for the first time since the Apollo Program ended over 50 years ago. These programs will create lasting infrastructure, like the Lunar Gateway, Artemis Base Camp, Moon Village, and the International Lunar Research Station (ILRS). In the ensuing decade, the first crewed missions to Mars are expected to occur, culminating with the creation of the first human outposts on another planet. Commercial ventures also want to establish habitats in Low Earth Orbit (LEO), enabling everything from asteroid mining to space tourism.

One of the biggest challenges for this renewed era of space exploration (Space Age 2.0) is ensuring that humans can remain healthy while spending extended periods in space. Foremost among them is ensuring that crews have functioning life support systems that can provide a steady supply of breathable air, which poses its own technical challenges. In a recent study, a team of researchers led by Katharina Brinkert of the University of Warwick described how artificial photosynthesis could lead to a new type of life support system that is smaller, lighter, easier, and more cost-effective to send to space.