Ground squirrels reduce their metabolism during hibernation; could humans do it, too, with some genetic tweaks?
Hibernation is extremely complex – after all, it affects every cell in the body – and there are almost certainly multiple switches involved in the process. MIT neuroscience researcher Siniša Hrvatin has identified another brain region that seems to play a key role in the process. In a paper published earlier this year (but not yet peer-reviewed), he and his team targeted a region known as the preoptic area, which plays a key role in metabolism and temperature. By activating neurons in the preoptic area of hamsters, the researchers put them into torpor, lowering the animals’ body temperature to 15C.
The key would be whether this is possible in humans.
And, of course, whether revival can be timed and automated – or perhaps with robotic (AI) assistance…
Of course, science fiction has posited “sleeper ships” for decades now. The Songs of Distant Earth (Arthur C. Clarke, one of the “Big Three”) is probably the most well-known of the classic sleeper ship stories, but there are plenty of others to choose from…
Originally designed to operate for just one year around Mars, MAVEN’s mission was repeatedly extended, enabling the most extensive research into the workings of the Martian atmosphere ever attempted.
Thanks to MAVEN, we know how the Mars atmosphere has been eroded by solar wind over billions of years. Designed to work for a single year, it operated for over eleven years.
Li Jiaying, a 43-year-old police officer and mother of three, serves as the payload scientist in the three-member crew who made their way to China’s Tiangong space station on Sunday night.
Artist’s impression. Probably doesn’t have that many track lights behind it.
Just 300 miles or so across, this mini Pluto is thought to be the solar system’s smallest object yet with a clearly detected global atmosphere bound by gravity, said lead researcher Ko Arimatsu of the National Astronomical Observatory of Japan.
The planetoid, called “(612533) 2002 XV93” (good luck remembering that one), was discovered and tracked by three separate observatories in Japan in 2024.
So why is it being only announced now?
Because scientists are cautious folk. They still want other observers to document this in other countries, to increase the validity of their finding.
The fact that the planetoid has an atmosphere (ridiculously thin, something like five to ten million times thinner than that of the Earth’s) came as a surprise.
“The moon really is its own unique body in the universe. When we have that perspective and we compare it to our home of the Earth, it just reminds us how much we have in common. Everything we need, the Earth provides, and that, in and of itself, is somewhat of a miracle.”
“It is blowing my mind what you can see with the naked eye from the moon right now,” Canadian astronaut Jeremy Hansen radioed ahead of the flyby. “It is just unbelievable.”
Live up dates of the Artemis II mission to “cislunar space” (it will not actually land on the Moon but will take four astronauts farther away from Earth than anyone else so far).
To find out that the outsourced company in charge couldn’t even be bothered to test the product. They just happily pocketed $72 million of taxpayer dollars and laughed all the way to the bank.