Illustration of a hot Jupiter planet in the Messier 67 star cluster. Hot Jupiters are so named because of their close proximity — usually just a few million miles — to their star, which drives up temperatures and can puff out the planets.
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Hot Jupiters were the first kind of exoplanet found. A quarter-century later, they still perplex and captivate — and their origins hold lessons about planet formation in general.
In 1995, after years of effort, astronomers made an announcement: They'd found the first planet circling a sun-like star outside our solar system! Lessons from scorching hot weirdo-planets ...formation...Lessons from scorching hot weirdo-planets Hot Jupiters were the first kind of exoplanet found. A quarter-century later, they still perplex and captivate — and their origins hold lessons about planet formation in general. Hot Jupiters were the first kind of exoplanet found.!! But that planet, 51 Pegasi b, was in a quite unexpected place — it appeared to be just around 4.8 million miles away from its home star and able to dash around the star in just over four Earth-days. Our innermost planet, Mercury, by comparison, is 28.6 million miles away from the sun at its closest approach and orbits it every 88 days.
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Newly Discovered Planet Challenges Astronomers' Notions Of How Planets Form : NPR
A team of scientists used a telescope at the Calar Alto Observatory in Spain to detect a gas giant orbiting a tiny red star some 30 light-years from Earth. Baback Tafreshi/Science Source/Getty Images hide caption
An oddball solar system discovered not too far from our own is forcing astronomers to reexamine their ideas about how planets get created.
In the journal Science, researchers report they detected a small, dim red dwarf star, about 30 light-years from Earth, being tugged by the gravity of what must be a huge, Jupiter-like planet.
"It's a very large planet, for such a small star," says Juan Carlos Morales , an astrophysicist at the Institute of Space Studies of Catalonia in Barcelona who was part of the research team.
It's so big, he says, that its existence can't be explained by the conventional wisdom about how solar systems develop.
Humans will not 'migrate' to other planets, Nobel winner says
"If we are talking about exoplanets, things should be clear: we will not migrate there," Mayor told AFP near Madrid on the sidelines of a conference when asked about the possibility of humans moving to other planets.
"These planets are much, much too far away. Even in the very optimistic case of a livable planet that is not too far, say a few dozen light years, which is not a lot, it's in the neighbourhood, the time to go there is considerable," he added.
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Using custom-made instruments at their observatory in southern France, Mayor and Queloz in October 1995 discovered what had previously only existed in the realm of science fiction—a planet outside Earth's solar system.
Mayor was a professor at Geneva University and Queloz was his doctorate student, when they made the discovery which started a revolution in astronomy! Flipboard: Lessons from scorching hot weirdo-planets ...planets/a...Lessons from scorching hot weirdo-planets knowablemagazine .org - By John Wenz Hot Jupiters were the first kind of exoplanet found. A quarter-century later, they still perplex and captivate — and their origins hold lessons about …!! Since then over 4,000 exoplanets have been found in our home galaxy.
Lava Flows on Venus Suggest That the Planet Was Never Warm and Wet - Universe Today
Venus is often referred to as " Earth's sister planet ", owing to the number of similarities between them. Like Earth, Venus is a terrestrial (aka. rocky) planet and it resides with our Sun's Circumstellar Habitable Zone (CHZ). And for some time, scientists have theorized that billions of years ago, Venus had oceans on its surface and was habitable – aka. not the hot and hellish place it is today.
However, after examining radar data on the Ovda Fluctus lava flow , a team scientists at the Lunar and Planetary Institute concluded that the highlands on Venus are likely to be composed of basaltic lava rock instead of granite! Five lessons from Megan Thee Stallion's 'Hot Girl Summer ...megan-thee...Five lessons from Megan Thee Stallion's ' Hot Girl Summer' video. ...As we approach Hot Girl Autumn – not Christian Girl Autumn, thanks – here's some lessons from the scorching video on how to keep your hotness all year round. KEEP YOUR KNEES STRONG. Even if you didn't know her for " Hot Girl Summer" ...!! This effectively punches a hole in the main argument for Venus having oceans in the past, which is that the Ovda Regio highlands plateau formed in the presence of water.
The study that describes their findings (and includes a new map of the highlands plateau) recently appeared in the Journal of Geophysical Research: Planets . The study was conducted by members of the LPI with the assistance of undergraduate student intern Frank Wroblewski (from Northland College), and Prof. Tracy K.P. Gregg of the University of Buffalo.
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Solar systems are 'baby-proof' for newborn planets - CNN
Space news: Nobel laureate claims humans won't move to other planets - Michel Mayor |
The Swiss astrophysicist believes planets outside of our system are simply too far away to reach. Speaking on Tuesday, October 8, Dr Mayor said “it’s completely crazy” to think otherwise! Breaking News English ESL Lesson Plan on Heat Wave ...I have never known such a scorching hot sun." His neighbour Bidde Gupta also complained of the never-ending heat. She said the baking hot spell seemed to be endless. She also said: "My house is like an oven. We are being roasted, even as we sleep." Meteorologists predict the hot and dry weather to continue until the end of June.!! The astrophysicist and colleague Didier Queloz were awarded the Nobel Prize for Physics this week.
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Thanks to their studies, astronomers have a better chance of discovering potentially habitable worlds in neighbouring star systems.
In 1995, the pair uncovered the presence of a large and gaseous planet orbiting a star 50 light-years or 293,931,270,000,000 miles from Earth.
To date, NASA’s various space probes and telescopes have found around 4,000 exoplanets and another 3,000 are awaiting confirmation.
“Since the first exoplanets were discovered in the early 1990s, the number of known exoplanets has doubled approximately every 27 months.”
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