Newly Discovered Alien Planet, Hotter Then Most Stars

Astronomers have found the hottest known exoplanet, a world where temperatures exceed those on the surface of most stars. The Jupiter-like planet, known as KELT-9b, zips around its hot host

By Mike Wall Space.com 6-5-17

star once every 1.5 Earth days. Its orbit is so tight that the gas giant is tidally locked, always showing the same face to the star, just as the moon shows only one face to Earth.

Temperatures on KELT-9b's "day side" reach a blazing 7,800 degrees Fahrenheit (4,300 Celsius), the planet's discoverers said. That's hotter than the surface of the dwarf stars that dominate the Milky Way galaxy, and just 2,200 degrees F (1,200 degrees C) cooler than the surface of the sun. (However, temperatures in the sun's outer atmosphere, or corona, can reach about 3 million degrees F, or 1.67 million degrees C.)

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1st Alien Planet of New Mission, Found By NASA's Kepler Spacecraft

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By Mike Wall
Space.com
12-18-14

      NASA's Kepler space telescope is discovering alien planets again.

The prolific spacecraft has spotted its first new alien planet since being hobbled by a malfunction in May 2013, researchers announced today (Dec. 18). The newly discovered world, called HIP 116454b, is a "super Earth" about 2.5 times larger than our home planet. It lies 180 light-years from Earth, in the constellation Pisces — close enough to be studied by other instruments, scientists said.

"Like a phoenix rising from the ashes, Kepler has been reborn and is continuing to make discoveries," study lead author Andrew Vanderburg, of the Harvard-Smithsonian Center for Astrophysics (CfA), said in a statement. "Even better, the planet it found is ripe for follow-up studies."

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Want to Colonize an Alien Planet? Send 40,000 People

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By Mike Wall
space.com
7-28-14

     If humanity ever wants to colonize a planet beyond the solar system, it's going to need a really big spaceship.

The founding population of an interstellar colony should consist of 20,000 to 40,000 people, said Cameron Smith, an anthropologist at Portland State University in Oregon. Such a large group would possess a great deal of genetic and demographic diversity, giving the settlement the best chance of survival during the long space voyage and beyond, he explained. . . .

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Alien Planet Collides with Earth; Gives Birth To The Moon? | VIDEO

Traces of another world found on the Moon

By Pallab Ghosh
BBC News
6-5-14

Researchers have found evidence of the world that crashed into the Earth billions of years ago to form the Moon.

     Analysis of lunar rock brought back by Apollo astronauts shows traces of the "planet" called Theia.

The researchers claim that their discovery confirms the theory that the Moon was created by just such a cataclysmic collision.

The study has been published in the journal Science.

The accepted theory since the 1980s is that the Moon arose as a result of a collision between the Earth and Theia 4.5 billion years ago.

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Alien Planet's 'Day' Clocked for 1st Time

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This artist’s view shows the planet orbiting the young star Beta Pictoris. This exoplanet is the first to have its rotation rate measured. Its eight-hour day corresponds to an equatorial rotation speed of 100,000 kilometers/hour — much faster than any planet in the Solar System.

By Mike Wall
space.com
4-30-14

      Astronomers have measured the rotation rate of an alien planet for the first time ever, finding that a huge Jupiter-like world called Beta Pictoris b has a day lasting just eight hours.

The equator of Beta Pictoris b, a gas giant about 10 times more massive than Jupiter, is moving at about 62,000 mph (100,000 km/h), researchers said — far faster than that of any planet in our solar system. In fact, Beta Pictoris b is the fastest-spinning planet yet seen.

In comparison, Jupiter's equator is traveling at about 29,000 mph (47,000 km/h), while Earth's is moving at just 1,060 mph (1,700 km/h). Days on these two familiar planets last about 10 hours and 24 hours, respectively. . . .

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By Megan Gannon
www.space.com
2-25-14

      Water vapor has been detected in the atmosphere of one of the first alien planets ever identified by astronomers.

Advances in the technique used to scan the atmosphere of this "hot Jupiter" could help scientists determine how many of the billions of planets in the Milky Way contain water like Earth, researchers said.

The exoplanet Tau Boötis b was discovered in 1996, when the search for worlds outside our solar system was just kicking off. At about 51 light-years away, Tau Boötis b is one of the nearest known exoplanets to Earth. The planet is considered a "hot Jupiter" because it is a massive gas giant that orbits close to its parent star. . . .

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