The universe is full of the strangest things. There are hyper-velocity stars – which aren’t shooting stars, by the way – and dust cloud that tastes like raspberry and smells like rum. There’s much more that sounds absolutely out of the world (pun intended). And then there are planets that are outside the solar system, which are mysterious. These strange and mysterious planets outside the solar system have been discovered in the past decade or so, after Dr. Alexander Wolszczan discovered the first three in 1994.
HD 209458 b, located 150 light years away from planet Earth, in the Pegasus constellation, and is the first exoplanet to be discovered in transit of its orbiting star. It is 30% larger than Jupiter, while its orbit is 1/8th of Mercury distance from Sun. Naturally, its temperature is extremely high: about 1832°F. This gas planet, under the extreme heat, and immense pressure, has faced evaporation of different atmospheric gases that stream escape its gravitational field, including hydrogen, carbon and oxygen.
PSR 1620-26 b is probably the oldest planet of the universe, old enough to defy the traditional astrophysical models. It is triple the age of Earth, and is thought to be just a billion years younger than the universe itself, when traditionally, it is believed that planets cannot be as old as the universe, because, 13.8 billion years ago, at the time of the big bang, the materials required for a planet to form were not there in the universe, then. Methuselah orbits a binary star comprising a white dwarf star and a pulsar, amongst the globular cluster of stars in the Scorpius constellation.