Fungi Were Able to Absorb Radiation on the ISS. Could Astronauts Grow Their own Radiation Shields in Space?

A lack of effective radiation shielding is one of the biggest challenges still to be overcome if humans are to embark on long-term voyages into deep space. On Earth, the planet’s powerful magnetosphere protects us from the deadliest forms of radiation – those produced by solar flares, and galactic cosmic rays arriving from afar – that stream through the Solar System. Astronauts on the International Space Station, some 408km above the Earth, receive elevated levels of radiation, but are close enough to Earth that they still receive some shielding, and can stay on orbit for up to a year. The same can’t be said for astronauts traveling further out, to the Moon, for example, or, someday, to Mars. Future deep space voyagers will need to bring their own shielding with them – or, as a new paper suggests – grow it along the way.

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Landsat 9’s First Images are Here

Landsat 9 carries two instruments designed to work together to capture a broad range of wavelengths: the Operational Land Imager 2 and the Thermal Infrared Sensor 2. Data from both instruments are shown in this image. Credits: NASA

The latest satellite in the Landsat family of Earth observation spacecraft has collected its “first light” images of our planet. Landsat 9 launched on September 27, 2021 and it continues the nearly 50-year tradition of making critical observations to help with energy and water management, forest monitoring, human and environmental health, urban planning, disaster recovery and agriculture.

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Hubble is Back Online — Partially

The venerable Hubble Space Telescope. After 30 years, it's still a productive scientific workhorse. Image Credit: NASA/ESA

The Hubble Space Telescope has been in ‘safe mode’ since October 23, with all of the science instruments offline and unavailable for observations. However, engineers have now been able to bring one instrument, the Advanced Camera for Surveys (ACS), back online, and have restarted its science observations. NASA said engineers are still investigating the issue as the other four instruments remain offline.

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Astronomy Jargon 101: Type-II Supernovae

This image of the supernova remnant SN 1987A was taken by the NASA/ESA Hubble Space Telescope in January 2017 using its Wide Field Camera 3 (WFC3). Since its launch in 1990 Hubble has observed the expanding dust cloud of SN 1987A several times has helped astronomers get a better understanding of these cosmic explosions. Supernova 1987A is located in the centre of the image amidst a backdrop of stars. The bright ring around the central region of the exploded star is material ejected by the star about 20 000 years before the actual explosion took place. The supernova is surrounded by gaseous clouds. The clouds’ red colour represents the glow of hydrogen gas. Image Credit: NASA, ESA, and R. Kirshner (Harvard-Smithsonian Center for Astrophysics and Gordon and Betty Moore Foundation) and P. Challis (Harvard-Smithsonian Center for Astrophysics)
This image of the supernova remnant SN 1987A was taken by the NASA/ESA Hubble Space Telescope in January 2017 using its Wide Field Camera 3 (WFC3). Since its launch in 1990 Hubble has observed the expanding dust cloud of SN 1987A several times has helped astronomers get a better understanding of these cosmic explosions. Supernova 1987A is located in the centre of the image amidst a backdrop of stars. The bright ring around the central region of the exploded star is material ejected by the star about 20 000 years before the actual explosion took place. The supernova is surrounded by gaseous clouds. The clouds’ red colour represents the glow of hydrogen gas. Image Credit: NASA, ESA, and R. Kirshner (Harvard-Smithsonian Center for Astrophysics and Gordon and Betty Moore Foundation) and P. Challis (Harvard-Smithsonian Center for Astrophysics)

In this series we are exploring the weird and wonderful world of astronomy jargon! You’ll have a blast learning about today’s topic: Type-II Supernovae!

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The Sounds of Mars: Hear the Wind and Crunch of Rover Wheels on the Red Planet

An illustration of the location of the two microphones on the Perseverance rover. Credit: NASA/JPL/CalTech

Two microphones aboard the Perseverance Rover have recorded “alien” sounds on Mars – the sounds of a human-made spacecraft crunching its wheels on the Red Planet’s surface, or its motors whirring, or blasts from its scientific laser instrument. Perseverance’s microphones have also captured the sounds of another spacecraft – the Ingenuity helicopter – taking flight. During the five or so hours recorded so far, you can hear the Martian wind gusting in the background.  

“We’ve been able to see Mars from the rovers’ point of view for a quite a long time now,” said Greg Delory, a consultant to the Mars 2020 rover microphone team, “so to have another ‘sense’ on Mars is pretty incredible.”

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NASA’s Target for Landing the First Artemis Astronauts on the Moon Slips to 2025

Illustration of SpaceX Starship human lander design that will carry the first NASA astronauts to the surface of the Moon under the Artemis program. Credits: SpaceX

NASA has pushed back the timetable for landing astronauts on the moon for the first time in more than a half-century from 2024 to no earlier than 2025.

Blue Origin’s unsuccessful legal challenge to a $2.9 billion lunar lander contract awarded to SpaceX was one of the factors behind the delay in the Artemis moon program, NASA Administrator Bill Nelson said during a Nov. 9 teleconference.

Nelson also pointed to Congress’ previous decisions not to fund the lander program as fully as NASA wanted, plus delays forced by the COVID-19 pandemic and the fact that “the Trump administration target of a 2024 human landing was not grounded in technical feasibility.”

“After having taken a good look under the hood these past six months, it’s clear to me that the agency will need to make serious changes for the long-term success of the program,” he told reporters.

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Heinz Releases Ketchup Made From Tomatoes Grown in Mars-like Conditions

Heinz ‘Marz Edition’ Ketchup Made Possible by Florida Tech Science. Credit: Florida Tech.

Potatoes, tomatoes …. which will grow best on Mars? Researchers are working towards figuring that out, partnering with a global foods company.

Introducing Heinz Tomato Ketchup, Marz Edition.

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Crew-2 Safely Returns from ISS — without a working toilet

ESA (European Space Agency) astronaut Thomas Pesquet, left, NASA astronauts Megan McArthur and Shane Kimbrough, and Japan Aerospace Exploration Agency (JAXA) astronaut Aki Hoshide, right, are seen inside the SpaceX Crew Dragon Endeavour spacecraft onboard the SpaceX GO Navigator recovery ship shortly after having landed in the Gulf of Mexico off the coast of Pensacola, Florida, Monday, Nov. 8, 2021. NASA’s SpaceX Crew-2 mission is the second operational mission of the SpaceX Crew Dragon spacecraft and Falcon 9 rocket to the International Space Station as part of the agency’s Commercial Crew Program. Credits: NASA/Aubrey Gemignani

Four astronauts splashed down safely in the Gulf of Mexico aboard their SpaceX Crew Dragon Endeavour capsule, despite one of the parachutes not deploying immediately. Their spectacular return in darkness from the International Space Station capped off the record-setting mission for the SpaceX Crew-2, with the longest spaceflight by a U.S. crewed spacecraft. Their 199 days in orbit surpassed the 168 days set by NASA’s SpaceX Crew-1 mission earlier this year.

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