Scientists have directly observed the rocky guts of exoplanets, which are worlds from different star systems, by watching the fallout of these objects crashing into the corpses of dead stars.
This mind-boggling technique has revealed that exoplanets are similar in composition to planets in our own solar system, implying that worlds like Earth may be plentiful in our galaxy, according to a study published on Thursday in Science .
"It's pretty cool because this is really the only way to measure the geochemistry of exoplanetary bodies directly," said lead author Alexandra Doyle, a graduate student of geochemistry and astrochemistry at UCLA, in a phone call.
Co-author Edward Young, a professor of geochemistry and cosmochemistry at UCLA, added that the study represents "the first time such an advanced way of looking at the geochemistry of these bodies has been used," in the same call.
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Today's Your Last Chance to Help Name an Alien Solar System-- | Space
Right now, it's a solar system known only by the designation HD 17156. Before 2019 ends, it will bear an entirely different second moniker — perhaps one suggested by you.
That's because the International Astronomical Union (IAU), which oversees all celestial nomenclature, has decided to mark its 100th anniversary by letting each country name a planetary system! Videos for Earth - Like Planets May Be Common 0:47 Earth - Like Planets May Be Common In Universe: Study Dailymotion!! The United States got HD 17156, and today (Oct. 15) is the last day for the public to submit proposed names, so get thinking.
The IAU has put some constraints on the project, of course. First, it needs two names: one for the planet , one for the star. They should be connected in some way that is open-ended enough to allow for naming other, not-yet-discovered stars or planets in the same system along the same principals.
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"The proposed names should be of things, people, or places of long-standing cultural, historical, or geographical significance, worthy of being assigned to a celestial object," the IAU wrote in its guidelines . The names don't have to be related to astronomy, although they can be.
Comet from another Solar System looks a lot like our own | Ars Technica
Interactions among the small bodies of our Solar System are expected to hurl small objects out into interstellar space with some regularity, and the frequency was probably much higher early in the system's history! Earth-Like Planets May Be Common Outside Our Solar System ...our...Earth-Like Planets May Be Common Outside Our Solar System , Scientists Discover - Tech A Peek Scientists have directly observed the rocky guts of exoplanets , which are worlds from different star systems, by watching the fallout of these objects crashing into the corpses of dead stars .!! Given that the same thing almost certainly happens at exosolar systems—and we now know there are a lot of those—it's likely that the vast volume of interstellar space is lightly sprinkled with small objects, some of which may sporadically pass through our own Solar System! Earth-Like Planets May Be Common Outside Our Solar System ...www.vice.com /en_us/article/kz4kzv/ ...our...Earth-Like Planets May Be Common Outside Our Solar System, Scientists Discover After studying the remains of exoplanets that crashed into dead stars, scientists think that rocky planets similar to...!! But up until very recently, we'd had no evidence of their existence.
That situation changed with the discovery of 'Oumuamua , a strange, cigar-shaped body that was the first confirmed exosolar visitor! Earth-Like Planets May Be Common In Universe: Study www.msn.com /en-us/video/wonder/ ...universe...A new study suggests that Earth-like planets may actually be common in the universe. Like us on Facebook to see similar stories Please give an overall site rating ...!! But 'Oumuamua was so strange that it set some astronomers speculating that it could be an alien craft . Earlier this year, however, scientists spotted a second potential exosolar visitor , and this one looked a lot like a comet! Earth-Like Planets May Be Common Outside Our Solar System ...our-solar...Scientists have directly observed the rocky guts of exoplanets, which are worlds from different star systems, by watching the fallout of these o!! Now, the first data on the object, 2I/Borisov, is in, and it's clearly exosolar in origin but looks so much like our existing comets that we might not have realized where it was from if we didn't have a good grip on its orbit.
A Faux Saturn Moon Titan on Earth Could Solve Solar System Mystery | Space
Big, schmancy compounds keep popping up all over the solar system , and new research may help clear up confusion about how they form in so many places.
"These dunes are pretty large," study senior author Ralf Kaiser, a chemist at the University of Hawaii at Manoa, told Space.com, nearly as tall as the Great Pyramid in Egypt, he added. "If you want to understand the carbon and hydrocarbon cycle and the processes of hydrocarbons on Titan, it's really important to understand, of course, where the dominant source of carbon comes from."
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On Titan, there's a straightforward mechanism that scientists know likely builds polycyclic aromatic hydrocarbons: These large molecules can form in the moon's thick atmosphere and settle down to the surface. But the same family of compounds has been found on plenty of worlds that boast no such atmosphere, like the dwarf planets Pluto and Ceres and the Kuiper Belt object Makemake .
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Solar systems are 'baby-proof' for newborn planets - CNN
SF Professor to Give Free Lecture Solar System's Top Tourist Sights - NBC Bay Area
Astronomer Andrew Fraknoi on Friday evening will hold a lecture at San Francisco State University on the top tourist destinations of the solar system.
Fraknoi is a professor emeritus at Foothill College and will give the lecture on "Where Will Your Great Grand-daughter Go For Her Honeymoon: The Top Tourist Sights of the Solar System."
The free, non-technical lecture begins at 7:30 p.m. in Jack Adams Hall in the Cesar Chavez Student Center. It's open to the public and seating is on a first-come, first-served basis.
Fraknoi's lecture is part of the 130th anniversary of the Astronomical Society of the Pacific, which is being celebrated at the university from 1 p.m. to 10 p.m. Friday.
A new way of studying planets in other solar systems - by doing a sort-of autopsy on planetary wreckage devoured by… https://t.co/EntjM3mwY4 ReutersScience Fri Oct 18 10:37:23 +0000 2019
Planetary 'autopsies' show that rocky worlds with geochemistry similar to Earth may be quite common in the cosmos.… https://t.co/30x2nAENKz Reuters (from Around the world) Fri Oct 18 14:10:32 +0000 2019
Doomed Alien Planets 'Polluted' White Dwarf Stars with Earth-Like Rocks https://t.co/n5KLe5yRlm https://t.co/2rWvzJJjN3 SPACEdotcom (from NYC) Thu Oct 17 19:20:02 +0000 2019
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