Space may be pretty, but it’s dangerous. Astronauts face a much higher dose of ionizing radiation than us Earth-bound folks, and a new report says that NASA’s current guidelines and risk assessment methods are in serious need of an update.Continue reading “Report Suggests That Astronauts Shouldn’t get More Than 600 Millisieverts of Radiation Exposure During Their Career. We get 2-3 a Year Down Here on Earth”
We bid a reluctant but truly fond farewell today to Michael Collins. The NASA astronaut passed away at the age of 90 on April 28, 2021. Collins flew on the historic Apollo 11 mission in 1969, and also on Gemini 10 in 1966.
As Command Module Pilot, Collins was the lone member of the Apollo 11 crew who remained in orbit while his fellow astronauts became the first to land and walk on the Moon. But his endearing nature means he will be most remembered for his wit and humor, his passion and humbleness, his unflappable demeanor, his thoughtful contemplations, and the inspiring words he left behind as a writer of several books.Continue reading ““Put LUCKY on My Tombstone.” Apollo 11 Astronaut Michael Collins Dies at 90″
Astronauts and cosmonauts in space have reported spatial disorientation problems, where they find it hard to get a sense of direction, or distinguish between what might be considered “up” or “down.” This is called “Visual Reorientation Illusions” (VRIs) where the spacecraft floors, walls and ceiling surfaces can suddenly exchange subjective identities.
An extreme example of this came when one shuttle astronaut reported feeling like the room was rotating around him when he opened his eyes one morning. Other astronauts have reported briefly not knowing where they were during a spacewalk.Continue reading “Since There’s no Up or Down in Space, How do our Brains Deal With This?”
NASA and the Canadian Space Agency (CSA) recently announced that a Canadian astronaut will fly as part of the crew of Artemis II. This mission, scheduled for 2023, will see an Orion space capsule conduct a circumlunar flight where it flies around the Moon without landing. This will be the first of two crew opportunities that NASA will provide for Canadian astronauts on Artemis missions (as per the agreement).Continue reading “A Canadian Astronaut Will be on Artemis 2, Making it the Second Nation to Send Humans Into Deep Space (but not Walk on the Moon)”
In less than four years, NASA will be sending the “first woman and next man” to the Moon as part of the Artemis III mission. This will be the first time that astronauts have landed on the lunar surface since the final mission of the Apollo Program, which was Apollo 17 in 1972. After careful consideration, NASA has announced the names of the 18 astronauts that make up the Artemis Team.Continue reading “NASA Announces its Artemis Astronauts: 18 People Training to Fly to the Moon”
In the coming years, astronauts will be returning to the Moon for the first time since the closing of the Apollo Era. Beyond that, NASA and other space agencies plan to establish the necessary infrastructure to maintain a human presence there. This will include the Artemis Gateway in orbit (formerly the Lunar Gateway) and bases on the surface, like NASA’s Artemis Base Camp and the ESA’s International Moon Village.
This presents a number of challenges. The Moon is an airless body, it experiences extreme variations in temperature, and its surface is exposed to far more radiation than we experience here on Earth. On top of that, there’s the lunar dust (aka. regolith), a fine powder that sticks to everything. To address this particular problem, a team of ESA-led researchers is developing materials that will provide better protection for lunar explorers.Continue reading “Lunar Dust is Still One of The Biggest Challenges Facing Moon Exploration”
One under-appreciated space asset is the photography skills of the Russian cosmonauts on board the International Space Station. They are extremely skillful photographers who don’t get the same recognition as their astronaut counterparts in their Earth observation skills. In particular, they have taken some stunning high-oblique shots of objects close to the horizon, with almost an 3-D effect.Continue reading “Mount Everest, Seen from Space!”
Any mission to Mars requires deeper planning than missions to the ISS or the Moon. Based purely on the length of the mission, contingencies branch outwards in complex logistical pathways. What if there’s an accident? What if someone’s appendix bursts?
And what if surgery is needed?Continue reading “How Would We Do Surgery in Space?”
Earth is a radiation cocoon. Inside that cocoon, the atmosphere and the magnetosphere keep us mostly safe from the Sun’s radiaition. Some ultraviolet light gets through, and can damage us. But reasonable precautions like simply minimizing exposure can keep the Sun’s radiation at bay.
But space is a different matter altogether. Among the many hazards it poses to astronauts, ever-present radiation is one that needs a solution.
Now a team of researchers have developed a new biomaterial to protect astronauts.Continue reading “Scientists Have Developed a Way to Make Human Skin More Protected from Space Radiation”
Dropping a mirror on Earth is only minor cause for concern, perhaps about the potential of some upcoming bad luck. Dropping a mirror while on a spacewalk means creating a potentially dangerous new piece of space junk, all while thousands of people watch it happen, streaming live.Continue reading “Astronaut Drops a Mirror During a Spacewalk. Now There’s Another Piece of Space Junk”