There's another new planet outside our solar system. Since 2010 we found about 100 new exoplanets a year. These discoveries seem less and less interesting. To help exoplanets get their groove back. We look for the coolest, weirdest and most extreme! Now, below are exoplanets that surely fascinate your boundless imagination. Well, it isn't imagination at all. They are real and only needs some attention. Are you ready? Then let's start!
The Planet that is in Between Two Systems
If we travel even farther away from Earth things get even more backwards. Literally, more than a thousand lightyears away. The planet HAT-P-7b is orbiting its star in the wrong direction. Most planets orbit in the same direction that their host star spins. But in 2008, astronomers discovered an exoplanet the size of Jupiter traveling in the opposite direction. The backwards motion remained a mystery into last year. When researchers detected a second star and outer planet in the same system of HAT-P-7b. Gravity of its neighbors could be responsible for the exoplanet unusual orbit. According to the study, stars and the newly discovered outer planet tilting its orbit affects the orbit HAT-P-7b. If the researchers are correct their theory could also explain unusual orbits in other systems.
The Oldest Exoplanet Ever Found
Earth has a hefty 4.5 billion years old under its belt. But that's nothing compared to the oldest known exoplanet PSR B 16-2026 b. More comfortably known as the Methuselah Planet is a walking billion years old. Which means that it was formed less than a billion years after the Big Bang. Methuselah orbits a binary system made up a pulsar and to white dwarf. According to a 2003 study, it's probably gas giant two-and-a-half times as massive as Jupiter. When I was first discovered in year 1994 scientists thought it was a small star. In the type of dark cluster where Methuselah lives. It was considered impossible for planets to form. These exoplanets that located thousands of light-years from Earth is so-called the globular cluster. Astronomers used to think lobular clusters didn't have enough heavy elements to make planets. Methuselah proves planets are here earlier than expected. Capable of forming early in the universe's history from limited materials.
The Raining Glass Planet
Our Earth is a blue planet where it rains water. The exoplanet HD 189733b is a blue planet where it rains glass in a sideway manner. Earlier this year the Hubble Space Telescope detected the blue exoplanet 63 lightyears from our own. The look of HD 189733b is darker than Earth's and the differences don't end there. The exoplanet is a gas giant like Jupiter and it's much closer to its sun. This post the average temperature to a scorching 1000 degrees Celsius. But on the dark side of the planet it can be hundreds of degrees cooler than the sunny side. This change in temperature creates enormous turbulence in the atmosphere. Winds up to 7000 km/h tossed around particles of silicate—the material that makes up sand and they may form grains of glass. A thing that rain sideways through its extreme environment. Reflecting the starlight and providing the planet's dark-blue color.
The Planet Made of Diamond
If the glass doesn't impress you. Perhaps, you prefer more sparkly material like diamonds. 55 Cancri e is a rocky world called the super-earth twice as large as our own planet. With eight times as much mass. And according to a 2012 study the planet contains a layer of graphite and diamond just below the surface. Beneath that mixture there's an even thicker layer containing mostly pure diamond. Altogether these materials make up one-third of the exoplanet's mass. But before you decide to travel 40 light-years to the glittery super-earth. Check out some more recent news. Researchers found that the ratio of carbon to oxygen hosting the atmosphere is lower than expected.
The Darkest of All Exoplanets
Reflected light makes exoplanets visible and gives Earth it's blue hue. But 750 lightyears away from our pale-blue dot. There's a peach-black world that reflects only one percent of the light hitting it. No, it's not the Death Star. it's a real planet. And as of 2011, it is the darkest planet ever discovered. Observing TrES-2b up close, it would not blacker than coal but with a slight red glow. It orbits close enough to it star to heat up to a toasty 980 degrees Celsius. Computer models suggest hot Jupiters-liked TrES-2b shouldn't be any darker than mercury. TrES-2b should shine ten times brighter. How did this exoplanet managed to stay as black as ink? A high concentration of chemicals like sodium and titanium oxide in the atmosphere could be absorbing the light. The researchers suspect there's another more mysterious phenomenon happening on the planet. But who knows? This dark world may represent a whole new category of planets.