Universe Today

March 3, 2022March 3, 2022 by Andy Tomaswick

Mars Explorers are Going to Need air, and Lots of it. Here’s a Technology That Might Help Them Breath Easy

In situ resource utilization (ISRU) is still a very early science. Therefore, the technology utilized in it could be improved upon. One such technology that created one of the most useful materials for ISRU (oxygen) is MOXIE – the Mars OXygen In-situ Resource Utilization Experiment. A small-scale model of a MOXIE was recently tested on the Perseverance last year. Its primary goal is to create oxygen out of the Martian atmosphere.

March 2, 2022March 2, 2022 by Evan Gough

The Expanding Debris Cloud From the Kilonova Tells the Story of What Happens When Neutron Stars Collide

This artist’s conception illustrates the aftermath of a "kilonova," a powerful event that happens when two neutron stars merge. The object is called GW170817 and is the only cosmic event where both gravitational waves and electromagnetic radiation were detected. Image Credit: X-ray: NASA/CXC/Northwestern Univ./A. Hajela et al.; Illustration: NASA/CXC/M.Weiss

When two neutron stars collide, it creates a kilonova. The event causes both gravitational waves and emissions of electromagnetic energy. In 2017 the LIGO-Virgo gravitational-wave observatories detected a merger of two neutron stars about 130 million light-years away in the galaxy NGC 4993. The merger is called GW170817, and it remains the only cosmic event observed in both gravitational waves and electromagnetic radiation.

Astronomers have watched the expanding debris cloud from the kilonova for years. A clearer picture of what happens in the aftermath is emerging.

March 2, 2022March 2, 2022 by Matt Williams

Ukrainians urge satellites to publicly share real-time images of the Russian invasion

On the morning of February 24th, after years of proxy conflict in the border region, Russia invaded the neighboring country of Ukraine. This invasion was the culmination of eight years of conflict that began with the removal of Ukrainian President Viktor Yanukovych (a long-time ally of Russian President Vladimir Putin) and Russia’s subsequent annexation of Crimea. This invasion has prompted the global community to mobilize and find ways to support Ukraine!

For instance, you have Earth Observatory System Data Analytics (EOSDA), a California-based “all-in-one cloud workspace” for Earth observation solutions. In a recent statement, EOSDA CEO Max Polyakov appealed to satellite imagery firms and space agencies worldwide to share their recent and real-time high-to-medium resolution optical and radar satellite imagery with EOSDA to assist military and humanitarian aid efforts in the region.

March 2, 2022March 2, 2022 by Andy Tomaswick

The Best way to Leave the Solar System Might be to fly Uncomfortably Close to the Sun

We’ve reported before on the conceptual mission known as the Interstellar Probe. This ambitious mission would visit the interstellar medium about 1,000 AU away from the Sun. But how exactly would the probe get there in a reasonable time frame? It has taken Voyager 35 years to travel less than 10% of that distance. The answer might lie in an old technology that has been given new life by advances in material science – the solar thermal propulsion system.

March 2, 2022March 2, 2022 by Evan Gough

Ion Engines Could Work on Earth too, to Make Silent, Solid-State Aircraft

A new MIT plane is propelled via ionic wind. Batteries in the fuselage (tan compartment in front of plane) supply voltage to electrodes (blue/white horizontal lines) strung along the length of the plane, generating a wind of ions that propels the plane forward. Credits:Image: Christine Y. He/MIT

Ion engines are the best technology for sending spacecraft on long missions. They’re not suitable for launching spacecraft against powerful gravity, but they require minimal propellant compared to rockets, and they drive spacecraft to higher velocities over extended time periods. Ion thrusters are also quiet, and their silence has some scientists wondering if they could use them on Earth in applications where noise is undesirable.

March 2, 2022March 2, 2022 by Nancy Atkinson

Stunning Photos from Air, Space and Ground of the Atlas V GOES-T Launch

A United Launch Alliance (ULA) Atlas V rocket carrying NOAA's GOES-T satellite, launching for NASA's Launch Services Program, lifts off from from Space Launch Complex-41 at 4:38 p.m. EST on March 1, 2022. Photo Credit: United Launch Alliance

NASA and NOAA now have a sophisticated new weather satellite in space. The GOES-T satellite launched on the powerful United Launch Alliance (ULA) Atlas V rocket on March 1, and it will provide forecasters with high resolution weather imagery. It will also provide real-time monitoring of events on the ground like wildfires, floods and landslides, while monitoring atmospheric and climate dynamics over the Western US and Pacific Ocean.

The liftoff from Cape Canaveral Space Force Station of GOES-T (Geostationary Operational Environmental Satellite-T) provided stunning views, and incredibly, other satellites looked down and captured the launch of the new satellite from space, such as this shot from its older sibling, GOES-16:

March 1, 2022March 1, 2022 by Andy Tomaswick

Future Astronauts Might be Able to 3D Print Their own Spacesuits and Parts as Needed

One of the best motivators to solve a problem is to experience it yourself. Dr. Bonnie Dunbar happened to have just such an experience. She is a former NASA astronaut and is now a professor of Aerospace Engineering at Texas A&M. While she was in the astronaut corps, she realized that some of her fellow astronauts couldn’t fit in an Extra Vehicular Activity suit – more commonly known as a spacesuit. So she decided not only to create one for the individuals with the original problem but to create a process by which any other astronaut launched on any future mission can have a spacesuit tailored to their own specific body. And now, her former employer (NASA) is funding her and her lab to complete a feasibility study of this customization process as part of the recently announced NASA Institute for Advanced Concepts (NIAC) program.

March 1, 2022March 1, 2022 by Nicholas Castle

A Mars Meteorite Shows Evidence of a Massive Impact Billions of Years ago

This artist’s impression shows how Mars may have looked about four billion years ago. The young planet Mars would have had enough water to cover its entire surface in a liquid layer about 140 metres deep, but it is more likely that the liquid would have pooled to form an ocean occupying almost half of Mars’s northern hemisphere, and in some regions reaching depths greater than 1.6 kilometres. Credit: ESO/M. Kornmesser

Researchers at Australia’s Curtin University have discovered evidence of a massive impact on the Martian surface after 4.45 billion years ago. This may not seem like a surprising revelation – after all, we know that there were several large impacts on Mars, like Hellas and Argyre, and we know that large impacts happened frequently in the early solar system – so why is this a big deal?

March 1, 2022March 1, 2022 by Nancy Atkinson

Here’s The Exact Point of the Moon’s South Pole

As the Moon heads into southern summer the region around the south pole is better seen by LROC. One of the many goals of the LRO mission is to improve our cartographic knowledge of the Moon. The location of the pole shown here (image 1600 meters wide) may be in error by several hundred meters, wait a year for an update! [NASA/GSFC/Arizona State University]

Since 2009, the Lunar Reconnaissance Orbiter (LRO) has been taking high-resolution pictures of the lunar surface. This data, along with the information from a laser altimeter mapping instrument has allowed scientists to create an incredibly detailed map of the Moon. NASA says they can now confidently pinpoint any feature on the Moon, including the exact location of its South Pole.

March 1, 2022March 1, 2022 by Evan Gough

Last-Minute Defense Against an Asteroid That Could Obliterate it Before Impact

Mining asteroids might be necessary for humanity to expand into the Solar System. But what effect would asteroid mining have on the world's economy? Credit: ESA.

Gazing at the night sky can evoke a sense of wonder regarding humanity’s place in the Universe. But that’s not all it can evoke. If you’re knowledgeable about asteroid strikes like the one that wiped out the dinosaurs, then even a fleeting meteorite can nudge aside your enjoyable sense of wonder. What if?

Luckily, planetary defence is at the top of mind for some scientists and engineers. One of those scientists is Professor Philip Lubin from the University of California Santa Barbara. Lubin is developing his idea called PI-Terminal Defense for Humanity. The PI stands for Pulverize It, and Lubin thinks pulverizing an incoming impactor into tiny pieces is our best bet to protect ourselves from an asteroid on short notice.