There could be several stars made of antimatter in our solar system's neighbourhood. There have been small hints that these strange and unlikely objects, called antistars, could exist, and a search for the gamma rays that they are expected to produce has turned up 14 candidates.
When matter and antimatter meet, they annihilate in a shower of radiation, including high-energy gamma rays . This is expected to happen fairly often at the surfaces of antistars – if they exist – as regular matter falls onto them.
Expert: Exploration of small celestial bodies helps study solar system - CGTN
China is working on a project to explore a near-Earth asteroid and a main-belt comet. Space Scientist Dr. Amitabha Ghosh, who has been working on NASA Mars Missions since 1997, explains the significance of exploring small celestial bodies. He says that the exploration of small celestial bodies helps us understand how the solar system is formed.
The solar system is weirdly dusty. How the hell did it get there? | WIRED UK
John Leif Jørgensen didn't set out to revolutionise the world's understanding of space dust. In fact, the Danish astrophysicist wasn't even looking for it. When, in 2011, he convinced his collaborators at Nasa to add a fourth camera to the Juno spacecraft, he hoped to use it to count asteroids that were too small to be detected by telescopes. But the particles that the cameras detected were far smaller: no more than 80 micrometres wide, not much bigger than the diameter of a human hair.
In their hunt for smaller asteroids, Jørgensen and his team had programmed one of the four star tracking cameras they designed to photograph any celestial object that appeared in multiple images and track its velocity. It switched on when Juno was out around Mars, just before it swooped back towards Earth to gain the necessary boost in speed that would allow it to escape Earth's gravity – a manoeuvre known as a 'gravity assist.' It then passed Mars again on its way to Jupiter.
A Record-Breaking Flare Has Erupted From The Closest Star to Our Solar System
Two years ago, our star's next door neighbor – Proxima Centauri – got a little emotional. It happens from time to time, only this time, the small red star really let go. A storm of fury that breaks its previous records, outdoing anything our own Sun could manage by magnitudes.
That doesn't mean it's quiet. Like most hot-tempered red dwarf stars, Proxima Centauri vents its rage every now and then in a brilliant display of radiation, spilling streams of plasma and light out into its system with a manic snapping and rejoining of its magnetic fields.
Researchers discover water inside a meteorite from the early solar system - SlashGear
Solar 101: Attaching your solar system to your roof – pv magazine USA
I wonder about capacity of the general racking configurations for snow loads. This is due to only a few rafters carrying the loads transmitted from the panels and racking. Without panels, the snow load is distributed uniformly across the entire structure. My 9 kW system has middle supports about every third rafter. I’m in middle Atlantic coast area so snow is not that common but we do occasionally get a zinger.
It would be interesting to see someone come up with a configuration which replaces the roof structure with aluminum rafters and rimless, flush mounted panels mounted like the sort of stuff you see in a glass roof. Such an installation would have cooler panels, rodent protected backsides and easier electrical inspection, maintenance. As best as I can determine, this is not done due to code compliance/certification or electrical bonding issues.
Wet'n'Wild's solar system to power operations | Honolulu Star-Advertiser
Wet'n'Wild has installed a 1.3-MW solar system that will power its operations and provide shade for parking.
Wet'n'Wild Hawaii has gone solar. The water park in Kapolei announced Wednesday the launch of its 1.3-megawatt solar system in the form of solar carport arrays in its parking lot, which the park said makes it Hawaii's first 100% solar-powered attraction. Read more
The system is made up of 2,958 high-efficiency, 440-watt solar panels, which are expected to fully power the park during operation hours.
Sun rises on West Rockhill solar system for Earth Day | News | montgomerynews.com
Space missions to icy worlds in the outer solar system on the horizon for geological sciences
Scientists see 'extreme' flare coming from our closest solar system | The Independent
The vast blast came out of the star Proxima Centauri when it went from its normal brightness to 14,000 times that in the space of just a few seconds.
Proxima Centauri is our nearest neighbour, just four light years from our star, and is much smaller than our Sun but punches above its weight. It is only an eighth of the mass of our Sun, and is a red dwarf, belonging to a class of stars that are particularly small and dim.
"A lot of the exoplanets that we've found so far are around these types of stars," said MacGregor. "But the catch is that they're way more active than our sun. They flare much more frequently and intensely."
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