The sample, known as Tagish Lake meteorite and discovered in Yukon, Canada, was analysed by researchers at various organizations including the Royal Ontario Museum (ROM), McMaster, and York University in the North American nation. They managed to pick out features a few nanometres in size on the rock using atom probe tomography.
Calcium, magnesium, and sodium gathered on the meteorite when it was in the Solar System's asteroid belt some 4.5 billion years ago. The unique framboidal structure of these chemicals reveals our system was once a wet alkaline environment that contained large amounts of sodium, the boffins concluded in a study published in America's Proceedings of the National Academy of Sciences this week.
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Here's Why We Must Send 100 Spacecraft To The Edge Of The Solar System
Hypothesised ninth planet, illustration. Planet Nine is a hypothesized massive planet, first ... [+] proposed in 2014, that is speculated to orbit far out in the solar system. It has not been detected formally. Instead, astronomers have inferred its presence from perceived perturbations of the orbits of some Trans-Neptunian Objects (TNOs). The planet is estimated to be 2 to 4 times the radius, and about ten times the mass of the Earth.
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So if there is a Planet Nine, it's incredibly far away. For context, NASA probes Voyager 1 and Voyager 2, which both left Earth in 1977, are currently 148 au and 123 au distant, respectively.
Most Extensive System of Haze Layers in the Solar System Have Been Discovered on Saturn
High-resolution images of Saturn’s Hexagon obtained by the Cassini spacecraft. Credit: UPV/EHU
Santiago Pérez-Hoyos, Agustín Sánchez-Lavega, Teresa del Río-Gaztelurrutia and Ricardo Hueso. Credit: UPV/EHU
The vertical extent of each haze layer is between approximately 7 and 18 km thick, and according to the spectral analysis, they contain minute particles with radii of the order of 1 micron.
Another aspect studied by the team is the regularity in the vertical distribution of the hazes. The hypothesis put forward is that the hazes are organized by the vertical propagation of gravity waves that produce oscillations in the density and temperature of the atmosphere, a well-known phenomenon on the Earth and on other planets.
Scientists want to catch alien objects from other solar systems with a huge ring of satellites
Ambitious plan would allow astronomers to see interstellar objects close up for the first ever time
Scientists have unveiled an ambitious plan to catch a visitor from another solar system using a vast ring of satellites.
When researchers saw the object known as 'Oumuamua in 2017 it made history as the first interstellar visitor ever spotted, and since then they have gone on to find more examples. Scientists think there is probably many more flying past Earth that are never seen, simply because they are too small and moving too quickly to spot in the night sky.
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What's the tallest mountain in the Solar System? - BBC Science Focus Magazine
Olympus Mons, an extinct volcano on Mars, is often quoted as the highest mountain in the Solar System, at a height of 21.9km (two and a half times the height of Everest). However, the mountain peak in the centre of the Rheasilvia crater on the asteroid Vesta, at about 22.5km, appears to be marginally taller. We don't know for sure because of difficulties in defining the mountains' 'base' heights, and uncertainties in measurements.
ASTRONOMY COLUMN: Black hole sits in system relatively close to sun | News | claremoreprogress.com
A universe aglow with stars sometimes is enough to make us forget that there are things that lurk in the darkness.
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Astronomers with the European Southern Observatory recently discovered that a black hole roams space just 1,000 light years from Earth. In galactic standards, that's very close — the Milky Way is 100,000 light years across. That's well far enough away from our solar system to not cause trouble, but pretty near nonetheless.
Solar panels power Waterloo plant | Thestar | kpcnews.com
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