'Oumuamua, which entered our Solar System from interstellar space in 2017, may be one of many remnants of a comet, asteroid, or small planet ripped apart by another star.
When 'Oumuamua swooped into our Solar System in 2017, the object stirred up excitement. The strange shape and trajectory of this first known visitor from interstellar space prompted even some serious scientists to suggest it might be an alien probe . But a new study arrives at a much more mundane explanation.
Not to change the topic here:
BepiColombo probe swings by Earth on way to Mercury – the Solar System's must-visit
BepiColombo, the first European-Japanese spacecraft to hopefully orbit Mercury, has swung by Earth for its first gravitational assist maneuver in its seven-year journey to the innermost planet of our Solar System.
It passed by our home world on Friday, reaching a minimum distance of about 12,700 kilometers from the surface; you can see what it's like to dive into Earth's gravitational well here .
Only a lucky few with the right telescopes would have been able to spot the spacecraft hovering above our outer atmosphere at 0425 UTC from the southern hemisphere. Don't worry too much if you weren't one of them, though: BepiColombo's cameras captured several shots as it flew closer to Earth. You can see our fragile little marble growing in size as the spacecraft approaches in this GIF (warning: 8MB).
You can see the moon shine with Jupiter, Saturn and Mars before dawn this week. Here's how.
The predawn hours this week will sparkle as Jupiter, Saturn and Mars dance around the moon on consecutive mornings.
On Tuesday morning (April 14), the moon will be moving toward the largest planet in our solar system, giant Jupiter . Then, on Wednesday (April 15), the moon will meet up with the ringed wonder of our planetary system, Saturn . Finally, on Thursday (April 16), it will be the turn of the god of war, Mars , to have a summit meeting with the moon .
Indian Oil Tenders for AMC of 600 kW Rooftop Solar System in Mathura
The Indian Oil Corporation (IOCL) has issued a tender, seeking eligible bidders for the comprehensive Annual Maintenance Contract (AMC) for its 600 kW rooftop solar PV system at its Mathura Refinery.
As per the tender documents, the most important objective of the Comprehensive Annual Maintenance Contract job shall be to get the designed results of the solar PV power system in addition to the normal maintenance activities covered in the Comprehensive AMC. The Contractor shall be responsible for all the required activities for the successful running, optimum energy generation as well as maintenance of associated facilities.
Many things are taking place:
Comets Are Breaking Apart, and Astronomers Are Stoked
"Continuing Hubble Space Telescope images of interstellar object 2I/Borisov...show a distinct change in appearance," read the statement, composed by astronomers David Jewitt of UCLA, Max Mutchler of STSCI, Yoonyoung Kim of the Max Planck Institute for Solar System Research, Hal Weaver of John's Hopkin's University's Applied Physics Laboratory and Man-To Hui of the University of Hawaii.
So far, Jewitt tells Popular Mechanics , only a small fragment—maybe about a tenth of a percent of the total mass—has come off of the roughly 1,600-foot-wide body. One of the pieces, according to an Astronomer's Telegram update posted on April 6, has already disappeared.
A Closer Look at Uranus' Puzzling Rings | Uranus Rings
Sparkling ring systems may be the best kept secret in solar system. Jupiter, Saturn, Uranus, and Neptune all have rings. Some, like Saturn's, are more visible. Others, like the Neptunian and Jovian ring systems, are less so.
Astronomers didn't discover Uranus' ring system until relatively recently, in 1977, as they're tough to spot in visible or near-infrared light. In 1986, the Voyager 2 spacecraft whizzed by Uranus and snapped a series of images of the planet's rings, revealing a set of thin lines of dust. So far, astronomers have counted 13 rings circling the planet with bits of dust interspersed between.
7 pollinator-friendly solar systems
There isn’t much room for other major developments on ground-mounted solar sites once a system is in place and running. One solution developers are putting into practice is planting pollinator-friendly vegetation and placing hives to encourage bees and other pollinating insects to visit solar project sites.
Bees and other pollinating species play an integral role in food production through pollination — not even including creating honey — with an estimated 35% of crop growth relying on them. The bee population is falling year-over-year, and one way to help out is by planting pollinator-friendly vegetation. Here are seven examples of that in solar projects.
NASA Wants to Photograph the Surface of an Exoplanet | WIRED
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It wasn't that long ago that the only known planets in our galaxy were those orbiting our own sun. But over the past few decades, astronomers have discovered thousands of exoplanets and concluded that they outnumber the stars in our galaxy. Many of these alien worlds have fantastic properties , such as planet-wide oceans of lava or clouds that rain iron. Others may have conditions strikingly similar to Earth .
Snapping photos of our extraterrestrial neighbors is an enticing idea, but the technological challenges involved with this mission are staggering. First, consider the sheer distance: 60 billion miles is about 16 times further from the sun than Pluto. If you were traveling at the speed of light, it would take more than three days to cover this distance.
Happening on Twitter
When 'Oumuamua swooped into our Solar System in 2017, the object stirred up excitement and suggestions that it migh… https://t.co/JzaL9xvgke NewsfromScience (from Washington, D.C.) Mon Apr 13 19:30:10 +0000 2020
'Oumuamua zipped through the inner solar system in 2017, revealing just how little we know about planetary systems… https://t.co/Xlb396hWxn AstronomyMag (from Our tiny corner of the cosmos) Tue Apr 07 05:30:24 +0000 2020
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