Universe Today - Space and astronomy news

September 21, 2021September 21, 2021

A LEGO® Version of the Very Large Telescope. It Even has a Laser Interferometer

Interferometers are some of the most highly advanced sensor instruments that humans have made. They are used in everything from astronomy to quantum mechanics and have profoundly impacted our understanding of science. But not all interferometers have to be functional. A Dutch astronomer named Frans Snik has just designed one that, while it isn’t function, is inspiring all the same – and it happens to be made out of Lego.

September 20, 2021September 20, 2021

NASA’s VIPER Rover Will Hunt for Water Near Nobile Crater at Moon’s South Pole

NASA says its VIPER rover will head for the western edge of Nobile Crater near the moon’s south pole in 2023, targeting a region where shadowed craters are cold enough for water ice to exist, but where enough of the sun’s rays reach to keep the solar-powered robot going.

Today’s announcement provides a focus for a mission that’s meant to blaze a trail for Artemis astronauts who are scheduled to land on the lunar surface by as early as 2024, and for a sustainable lunar settlement that could take shape by the end of the decade.

“Once it’s on the surface, it will search for ice and other resources on and below the lunar surface that could one day be used and harvested for long-term human exploration of the moon,” Lori Glaze, director of the planetary science division at NASA’s Science Mission Directorate, said during a teleconference.

September 20, 2021September 20, 2021

How Could we Light our Cities and Still See the Night Sky?

The night sky is a part of humanity’s natural heritage. Gazing up at the heavens is a unifying act, performed by almost every human that’s ever lived. Haven’t you looked up at the night sky and felt it ignite your sense of wonder?

But you can’t see much night sky in a modern city. And the majority of humans live in cities now. How can we regain our heritage? Can quiet contemplation make a comeback?

September 20, 2021September 20, 2021

Accurately Forecasting the Weather on Mars and Titan

Even meteorologists who forecast the weather on Earth admit that they can’t always accurately predict the weather at a specific location on our planet any given time. And so, attempting to forecast the atmospheric conditions on another world can be downright impossible.

But a new study suggests that an oft-used forecasting technique on Earth can be applied to other worlds as well, such as on Mars or Titan, Saturn’s largest moon.

September 20, 2021September 20, 2021

The Moon was Pummeled Even Harder by Asteroids Than it Looks

The Moon’s pitted surface tells a tale of repeated impacts over a long period of time. While Earth’s active geology erases most evidence of impacts, the Moon has no mechanism that can do the same. So there it sits, stark evidence of an impact-rich past.

The visible record of lunar cratering is used to understand Earth’s formation and history since periods of frequent impacts would affect both bodies similarly. But something’s wrong in our understanding of the Moon’s history. Impact crater dating, asteroid dynamics, lunar samples, impact basin-forming simulations, and lunar evolution modelling all suggest there’s some missing evidence from the Moon’s earliest impacts.

New research says that there were even more large, basin-forming impacts than we think. Scientists think that some of those impacts left crater imprints that are nearly invisible.

September 19, 2021September 19, 2021

Astronomers See Carbon-Rich Nebulae Where Planets are Forming

Understanding the birth of a planet is a challenging puzzle. We know that planets form inside clouds of gas and dust that surround new stars, known as protoplanetary disks. But grasping exactly how that process works – connecting the dots between a dust cloud and a finished planet – is not easy. An international team of astronomers is attempting to unlock some of those secrets, and have recently completed the most extensive chemical composition mapping of several protoplanetary discs around five young stars. Their research allows them to begin to piece together the chemical makeup of future exoplanets, offering a glimpse into the formation of new alien worlds.

September 18, 2021September 18, 2021

ExoMars Will be Drilling 1.7 Meters to Pull its Samples From Below the Surface of Mars

In about a year (Sept. 20^th, 2021), the Rosalind Franklin rover will depart for Mars. As the latest mission in the ESA’s and Roscosmos’ ExoMars program, Rosalind Franklin will join the small army of orbiters, landers, and rovers that are working to characterize the Martian atmosphere and environment. A key aspect of the rover’s mission will involve drilling into the Martian soil and rock and obtaining samples from deep beneath the surface.

To prepare for drilling operations on Mars, the ESA, Italian space agency (ASI), and their commercial partners have been conducting tests with a replica – aka. the Ground Test Model (GTM). Recently, the test model completed its first round of sample collection, known as the Mars Terrain Simulation (MTS). The rover drilled into hard stone and extracted samples from 1.7 meters (5.5 feet) beneath the surface in a record-breaking feat.

September 18, 2021September 18, 2021

Finally an Answer to why Gamma Rays are Coming From Seemingly Empty Space

Gamma rays strike Earth from all directions of the sky. Our planet is bathed in a diffuse glow of high-energy photons. It doesn’t affect us much, and we don’t really notice it, because our atmosphere is very good at absorbing gamma rays. It’s so good that we didn’t notice cosmic gamma rays until the 1960s when gamma-ray detectors were launched into space to look for signs of atomic weapons tests. Even then, what we noticed were intense flashes of gamma rays known as gamma ray bursts.

September 17, 2021September 17, 2021

Astronaut Blood and Urine Could Help Build Structures on the Moon

Thinking outside the box has always been a strong suit of space exploration. Whether taking a picture of the Earth in a sunbeam or attempting to land a rocket on a floating ship, trying new things has been a continual theme for those interested in learning more about the universe. Now, a team from the University of Manchester has come up with an outside-the-box solution that could help solve the problem of building infrastructure in space – use astronauts themselves as bioreactors to create the building blocks of early colonies.

September 17, 2021September 17, 2021

Perseverance has Already Detected Over 300 Dust Devils and Vortices on Mars

Dust devils are generally used as a trope in media when the writers want to know that an area is deserted. They signify the desolation and isolation that those places represent. Almost none of the settings of those stories are close to the isolation of Perseverance, the Mars rover that landed on the planet earlier this year. Fittingly, the number of dust devils Perseverance has detected is also extremely high – over 300 in its first three months on the planet.