Top 10 Planets Discovered

Every year new planets are discovered. This planets discoveries gives us greater enlightenment into the origin and nature of our universe. They planets discovered so far have also helped us to answer a fundamental question that has bothered us for millennia, is there life out there? This list takes a look at the top 10 planets discovered giving a brief explanation on why the discovery is as important as we say.

top-10-planets-discoveredImage credit: CSGlobe

10.PSR B1620-26 b

psr-b1620-26-bImage credit: The Daily Galaxy

The discovery of PSR B1620-26 b was made on May 30, 1993. The Methuselah of planets is the oldest planet ever discovered. At 13 billion years old – of all planets discovered – this is the planet that seems closest to the age of the universe, 13.7 billion years old. Found deep within a globular cluster of different stars it remains one of the most amazing planets discoveries till date.

9. Epsilon Eridani b

epsilon-eridani-bImage credit: Wikipedia

Otherwise just referred to as Epsilon Eridani, this planet or group of planets is the closest to our solar system. Just 10 light years away from our solar system, Epsilon Eridani was one of the most fascinating planets discovered, has two asteroid belts.

8. 55 Cancri B

55-cancri-bImage credit: Wikipedia

There are many reasons why the 55 Cancri B was one of the most interesting planets discovered. Firstly, it one of the relatively new planets as it was discovered in April, 2006. The fascinating aspect of these planets discoveries, is that it is a two-star, multiple star solar system. This is the highest number of confirmed planets that are orbiting one star apart from the sun.

7. V391 Pegasi b

v391_pegasi bImage credit: Wikipedia

Discovered in March, 2007, the V391 Pegasi b is one of the new planets. It is amongst the interesting planets discoveries because of where it orbits. V391 Pegasi b was found orbiting a white dwarf star. The meaning is that it was once swallowed up by the star and survived. This bodes well for the Earth which is likely swallowed up by our sun in 5 billion years time.

6. µ Arae c

µ Arae cImage credit: Wikimedia Commons

On 25 August, 2004, the first Super-Earth was discovered. The discovery of this rocky exoplanet was one of the key new planets discovered as it led scientists on to discover other Earth-like planets outside of our solar system. The discovery of µ Arae c is still part of the new planets discoveries that made waves at the turn of the century.

5. COROT-7b

corot-7bImag credit: YouTube

With the emergence of new planets discoveries bearing semblance to Earth, came greater understanding about our planet. Corot-7b, discovered on 3 February, 2009, is one such planet. The uniqueness of these planets discovered was that though it looked much like Earth, Corot-7b comprised of a sea of molten rock, as well as metal, pervading its entire surface. This is due to the planets close proximity with it’s sun. Though this planet has an atmosphere, it is extremely thin with very scarce amounts of water vapour.

4. 91 Aquarii b

91-aquarii-bImage credit: Cosmos Up

91 Aquarii b is one of the fascinating new planets discovered simply because it encircles the most suns. A fascinating fact about our universe is that a single star solar system such as ours is actually not as prevalent as we would like to think. Most of the stars we see at night are actually multiple star systems. The 91 Aquarii system actually has 5 stars.

3. HD 209458 b

hd-209458-bImage credit: Encyclopedia Britannica

The HD 209458 b was an interesting discovery as it was the first exoplanet in which the atmospheric composition was known, thanks to its perfect alignment with our line of sight. The planets atmosphere contains sodium, methane, carbon dioxide, and some water vapour. This planet was also the second planet which has been revealed to possess organic compounds.

2. Fomalhaut b

fomalhaut-bImage credit: Wikipedia

Of all new planets that have been discovered, the Fomalhaut b remains one of the first two planets which was photographed. This was carried out through huge Earth-based telescopes contained at the William Keck and Gemini observatories as well as the Hubble Space Telescope.

1. Gliese 581-b

gliese-581-bImage credit: Wikipedia

Gliese 581-b makes the list as one of the top ten planets ever discovered and ranks top partly because of how similar it is to our planet. The Gliese 581-b is startlingly similar to Earth despite being 7-14 times its size. Its orbit is within the habitable zone of its solar system making it capable of containing life. The possibility of intelligent life forms similar to ours is also extremely high.

These are the top 10 planets discovered. Our focus has primarily been on the new planets – discovered within the past two decades – which have greatly improved our understanding about our universe. Should you find our post interesting, do like. Comments and notes for improvement are also appreciated. Also endeavor to share.

Post Author: SparkInList Staff

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