Physicists from Lancaster University have established why objects moving through superfluid helium-3 lack a speed limit in a continuation of earlier Lancaster research.
Helium-3 is a rare isotope of helium, in which one neutron is missing. It becomes superfluid at extremely low temperatures, enabling unusual properties such as a lack of friction for moving objects.
It was thought that the speed of objects moving through superfluid helium-3 was fundamentally limited to the critical Landau veloc…
Asteroid flying at 2,500mph will skim Earth day before US election – Metro.co.uk
Should we be worried?
If the asteroid did enter Earths atmosphere it would burn up instantly (Picture Paul Paladin)
An asteroid the size of a refrigerator will skim the Earth next month, the day before the US election.
The incoming space rock has been designated Asteroid 2018VP1, and Nasa says it poses no risk to life on Earth.
In fact, Asteroid Watch a branch of the space agency that detects, tracks and characterises near-Earth objects (NEOs) said Asteroid 2018VP1 has a 0.41 per cent (or one in 240) chance, of en…
Voyager Spacecraft Detect an Increase in The Density of Space Outside The Solar System – ScienceAlert
In November 2018, after an epic, 41-year voyage, Voyager 2 finally crossed the boundary that marked the limit of the Sun’s influence and entered interstellar sp…
In November 2018, after an epic, 41-year voyage, Voyager 2 finally crossed the boundary that marked the limit of the Sun’s influence and entered interstellar space. But the little probe’s mission isn’t done yet – it’s now sending home information about the space beyond the Solar System.
And it’s revealing something surprising. As Voyager 2 moves farther and farther from the Sun, the density of space is increasing.
It’s not the first time this density increase has been detected. Voyager 1, whic…
Ice Melt in Alaska Threatens to Unleash Unprecedented ‘Mega-Tsunami’, Scientists Warn – ScienceAlert
A giant, catastrophic tsunami in Alaska triggered by a landslide of rock left unstable after glacier melting is likely to occur in the next two decades, scienti…
A giant, catastrophic tsunami in Alaska triggered by a landslide of rock left unstable after glacier melting is likely to occur in the next two decades, scientists fear – and it could happen within the next 12 months.
A group of scientists warned of the prospects of this impending disaster in Prince William Sound in an open letter to the Alaska Department of Natural Resources (ADNR) in May.
While the potential risks of such a landslide are very serious, there remain a lot of unknowns about jus…
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