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Updates and Upsets / Re: New WordPress version
Last post by Rick - Apr 10, 2024, 09:40:20

...and again this morning.

If you see anything strange or broken on the main website, please let me know.
Study sheds light on the white dwarf star, likely destroyer of our solar system

Scientists from the University of Warwick and other universities have studied the impact white dwarfs – end-of-state stars that have burned all their fuel – have on planetary systems such as our own solar system.

When asteroids, moons and planets get close to white dwarfs, their huge gravity rips these small planetary bodies into smaller and smaller pieces, which continue to collide, eventually grinding them into dust.

While the researchers said Earth would probably be swallowed by our host star, the sun, before it becomes a white dwarf, the rest of our solar system, including asteroids between Mars and Jupiter, as well as moons of Jupiter, ultimately may be shredded by the sun in a white star form.

More: https://www.theguardian.com/science/2024/apr/09/study-sheds-light-on-the-white-dwarf-star-likely-destroyer-of-our-solar-system
Starwatch: Exploding nova promises rare sight in coming months

In the case of T Coronae Borealis, historical observations show that it explodes approximately every 80 years. Astronomers expect it to blow any time between now and September. The chart shows the view looking east from London at about 22.00 BST this week, and marks the location to keep an eye on. When it erupts, the star is expected to reach the same brightness as Alphecca, the brightest star in its home constellation.

More: https://www.theguardian.com/science/2024/apr/08/starwatch-star-nova-t-coronae-borealis-visible
In the Media... / NASA engineers discover why Vo...
Last post by Rick - Apr 06, 2024, 08:48:48
A little more detail...

NASA engineers discover why Voyager 1 is sending a stream of gibberish from outside our solar system

For the past five months, the Voyager 1 spacecraft has been sending a steady stream of unreadable gibberish back to Earth. Now, NASA engineers finally know why.

The 46-year-old spacecraft sends regular radio signals as it drifts further from our solar system. But in November 2023, the signals suddenly became garbled, meaning  scientists were unable to read any of its data, and they were left mystified about the fault's origins.

In March, NASA engineers sent a command prompt, or "poke," to the craft to get a readout from its flight data subsystem (FDS) — which packages Voyager 1's science and engineering data before beaming it back to Earth.

After decoding the spacecraft's response, the engineers have found the source of the problem: The FDS's memory has been corrupted.

More: https://www.livescience.com/space/space-exploration/nasa-engineers-discover-why-voyager-1-is-sending-a-stream-of-gibberish-from-outside-our-solar-system
In the Media... / Re: Chunks of deorbiting ESA s...
Last post by Rick - Apr 04, 2024, 16:59:42
I expect they've been arguing over who foots the bill for weeks already...

I suspect they'll be a lot more careful about how they drop that kind of high density garbage out of orbit in future, though.
In the Media... / Re: News of the Voyager missio...
Last post by Dave A - Apr 04, 2024, 14:57:35
Really incredible that we can still communicate with Voyager 1-  lets hope this continues
In the Media... / Re: Chunks of deorbiting ESA s...
Last post by Dave A - Apr 04, 2024, 14:54:21
As well as Nasa, wont ESA and Roscosmos be liable too
In the Media... / Re: Boffins build world's larg...
Last post by Carole - Apr 04, 2024, 14:19:28
In the Media... / Re: Chunks of deorbiting ESA s...
Last post by Carole - Apr 04, 2024, 14:18:46
Oh my goodness.  Presume NASA will have to pay for the house repairs.
In the Media... / Re: News of the Voyager missio...
Last post by Carole - Apr 04, 2024, 14:14:37
Good news - glad they never gave up.