Home Science Exoplanet Zoo – Trottier Institute for Research on Exoplanets

Exoplanet Zoo – Trottier Institute for Research on Exoplanets

by News Desk
0 comment

For thousands of years, humans have known that some stars in the night sky behave differently than others. We have often given these “wandering stars” a very special place in our historical beliefs and legends. In fact, the word “planet” is of Greek origin. planet, which means “wanderer”. Today, we are scientifically well aware that these are neighboring worlds that orbit the Sun in the same way that Earth does.

solar system planets. Not to scale. (Credit: NASA).

The next exciting question was: Do planets exist around other stars? Are there many solar systems like ours in the universe? Interestingly, the answer was both yes and no. There are many other planets, but not all of them look like those in our solar system! We call these “exoplanets” or “exoplanets”. exoplanet.

For centuries, astronomers who have studied our own planets have believed that planets fall into three basic types.

  1. small rocky planetmainly close to planets such as Mercury, Venus, Earth, and Mars.
  2. gas giant Farther away like Jupiter or Saturn.
  3. big ice planet A cold surface like Uranus or Neptune.

Discovering the amazing diversity of exoplanets has been shocking and exciting. Astronomers have discovered some truly exotic types of planets:

An artistic representation of a hot Jupiter exoplanet. (Credit: ATG Medialab/ESA)

hot jupiter It is a very hot gas giant. These planets are so close to their stars that they have angles of thousands of degrees and can orbit in just hours or days.

An artistic representation of a “cotton candy” exoplanet. (Credit: NASA/ESA/STScI)

super puff or cotton candy The planet is a gas giant with a fairly small mass, but the intense radiation from its star has caused its atmosphere to “puff up” to gigantic sizes. The average density of these planets resembles cotton candy. Super lightweight and fluffy!

Artistic representation of how a mini-Neptune transforms into a super-earth due to star irradiation. (Credit: NASA/R. Luger)

super earth A rocky planet slightly larger than Earth mini neptune It is slightly smaller than Neptune and probably has a thick gaseous atmosphere. These types of planets are most common throughout the galaxy, but we have no such in our own solar system.

An artistic representation of TOI-1452 b, a candidate ocean world discovered by iREx researchers. (Credit: UdeM/B. Gougeon)

water world A planet with a deep ocean covering its entire surface.

Artistic representation of the world of lava. (Credit: NASA/Hubble)

lava planet It is a small rocky exoplanet, but because it orbits so close to its star, it has a surface of molten rock. These planets may actually experience literal rain of rocks as vaporized material cools on the night side.

An artistic representation of a rogue planet. (Credit: NASA/JPL-Caltech)

rogue planet It is a planet-like object that floats freely in space without being bound by any star.

today we discovered Over 5000 exoplanets And we’ve learned that our own solar system is by no means a “standard” kind of system.

One of the most exciting goals in exoplanetary science is Signs of extraterrestrial lifeWe believe the best chances of finding life are on rocky planets with liquid water. All life as we know it requires liquid water to survive. This seems like a good place to start, but how do you find exoplanets and how do you figure out what kind of planets they are? Scientists around the world have come up with amazing techniques and technologies to do just that!?

You may also like

Leave a Comment

Copyright ©️ All rights reserved. | Canadian Trends