Young Stars can Evaporate Nearby Disks Before They can Form Planets - Universe Today
Many planetary systems may get snuffed out before they even get a chance to form, according to new research. The culprit: nearby stars, capable of evaporating entire protoplanetary disks just when they begin to form.
Stars tend to form in clusters as a single giant nebula fragments into many smaller pieces. Naturally, some stars will form first. Among those stars will be large, hot ones, capable of pumping out tons of intense high-energy radiation.
How are solar systems born? | Penn State University
UNIVERSITY PARK, Pa. — Many of us remember those school-room models of our Solar System, with tiny wooden planets rotating at the ends of their wires around a bright-orange painted sun. But how accurate is the model? Do the planets really align in a plane, or do their orbits crisscross around the sun at different angles? It turns out the toy isn't too far off, at least in this one aspect.
Our solar system is actually pretty flat, with most of its planets orbiting within three degrees of the plane of the Earth's orbit around the sun, called the ecliptic. This flatness extends to the asteroid belt between Mars and Jupiter, though some members of the region of icy objects past Neptune called the Kuiper belt are more extreme, with inclinations up to 30 degrees.
Green Lantern: The Crux Worlds Are the Most Important Planets in the DC Universe
Warning: The following contains spoilers for Green Lantern #2 by Geoffrey Thorne, Dexter Soy, Marco Santucci, Alex Sinclair and Rob Leigh, on sale now.
Following the events of Green Lantern #1, Oa was accepted into the United Planets and the entire Green Lantern Corps was restructured. The Guardians throw out the established Corps hierarchy, eliminate 1200 sectors, and reassign countless Lanterns. Most notable are the reassignments of the human Lanterns, which reveal the most important planets in the DC Universe.
Cosmic census reveals 540 stars and planets in our neighbourhood | New Scientist
A cosmic census of the currently known objects in the vicinity of our sun has revealed that there are 540 stars and planets in the immediate neighbourhood.
Using existing databases of objects alongside data from the European Space Agency's Gaia telescope , which is mapping billions of stars in our galaxy, Céline Reylé at the UTINAM Institute in France and her colleagues pooled all knowledge of objects within 10 parsecs, or 33 light years, of our sun.
How to Scan Planets in Mass Effect 3 (& Evade Reapers)
Scanning planets for resources, anomalies, and other important items is an essential part of the final two games in the Mass Effect trilogy, but the mechanics change slightly between Mass Effect 2 and Mass Effect 3 . In Mass Effect 2 , players scan each individual planet and launch probes to recover rare minerals that can be used to upgrade the Normandy and weapons and armor across the entire squad.
When Shepard scans near a planet that contains an asset or other item in Mass Effect 3 , they can navigate the Normandy to the planet. They can then use the same mineral scanner to locate and extract the item. The Reaper invasion complicates this process somewhat, as the Normandy's SONAR scanner tends to get Reaper attention. Too many scans allow the Reapers to pinpoint the Normandy's exact location and chase after it, which can result in a critical mission failure.
Jersey Skies: A trio of planets rise after sunset - Jersey's Best
The Constellation Orion has been with us all through the fall and winter months, but is now setting in the west after sunset. You might be able to spot Orion's belt, which is almost parallel to the horizon as it sets. The sun sets at around 8:02 p.m., so the bright twilight will make it difficult to see the three stars in the belt. Look for it low in the western sky between 8:30 and 9 p.m.
The planet Venus has returned to the evening sky and is joined by Mercury and Mars. This image of Venus was taken with an ultraviolet camera onboard the Japanese Venus Climate Orbiter known as Akatsuki. Photo courtesy of JAXA/ISAS/DARTS
What's up in the night sky for May 2021
May is a great month for checking out the stars and planets. The warmer nights make it more comfortable for backyard or rooftop stargazing. Here are some highlights you don't want to miss.
The "star" of the night sky this month is a planet. Mercury will be easily spotted during May. It will be a bright, steady light in the sky with a yellowish hue.
On May 13th, be sure you don't miss Mercury as it passes near the crescent moon. Venus will be just below Mercury and the Moon.
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