Feb

22

The planet GJ 1214b was discovered in 2009 and was one of the first planets where an atmosphere was detected. In 2010, scientists were able to measure the atmosphere, finding it was likely composed mainly of water.

Now, with infrared spectra taken during transit observations by the Hubble Space Telescope, scientists say this world is even more unique, and that it represents a new class of planet: a waterworld underneath a thick, steamy atmosphere.

“GJ 1214b is like no planet we know of,” said Zachary Berta of the Harvard-Smithsonian Center for Astrophysics (CfA). “A huge fraction of its mass is made up of water.”

GJ 1214b is a super-Earth — smaller than Uranus but larger than Earth — and is about 2.7 times Earth’s diameter, weighing almost seven times as much. This world is also hot: it orbits a red-dwarf star every 38 hours at a distance of 2 million kilometers, giving it an estimated temperature of 230 degrees Celsius.

Berta and a team of international astronomers used Hubble’s Wide Field Camera 3 (WFC3) to study GJ 1214b when it crossed in front of its host star. During such a transit, the star’s light is filtered through the planet’s atmosphere, giving clues to the mix of gases.

“We’re using Hubble to measure the infrared color of sunset on this world,” Berta said.

Hazes are more transparent to infrared light than to visible light, so the Hubble observations help to tell the difference between a steamy and a hazy atmosphere. They found the spectrum of GJ 1214b to be featureless over a wide range of wavelengths, or colors. The atmospheric model most consistent with the Hubble data is a dense atmosphere of water vapor.

Since the planet’s mass and size are known, astronomers can calculate the density, of only about 2 grams per cubic centimeter. Water has a density of 1 gram per cubic centimeter, while Earth’s average density is 5.5 grams per cubic centimeter. This suggests that GJ 1214b has much more water than Earth does, and much less rock.

As a result, the internal structure of GJ 1214b would be extraordinarily different from that of our world.

“The high temperatures and high pressures would form exotic materials like ‘hot ice’ or ’superfluid water’, substances that are completely alien to our everyday experience,” Berta said.

Jan

23

A new planet, Waterworld  was discovered December 2009. This is newsworthy because astronomers have discovered only 400 planets outside our solar system in the last 20 years. The Coroty telescope and the Kepler telescope are responsible for the find as they are looking for large masses that are the size of Earth or larger within the Goldilocks zone.

Waterworld Planet is located in the Goldilocks zone where conditions are neither too hot nor too cold for life as we know it today.  To have life there needs to be water and the temperature in this zone allows water to flow.

We will find out more about the composition of Waterworld Planet from the Hubble Telescope. This telescope should tell us if the planet is habitable once it is able to observe/analyze its makeup.

The current information that we have regarding Waterworld Planet is that it is made up of 75% H2O and rock.

The thoughts of being able to maintain life in outer space becomes more likely every day. The Planet Waterworld is the first planet discovered in the universe that is like Earth.  Which is very exciting indeed.

Jan

17

Waterworld Planet is classified as a super earth.

The temperature on the planet Waterworld is too hot for humans as we know  to live there.

Despite the temperature there seems to be water, ice and rock on the planet Waterworld.

Jan

13

Waterworld Planet is made up of 75% water and 25% rock.

The water temparture on Waterworld Planet (GJ1214b) is between 120c and 282c.

Waterworld  is the first planet that has been discovered that is larger than earth.

Jan

9

Waterworld Planet is more like earth than any planet discovered. There has been over 400 planets discovered in the last 2 decades and Waterworld Planet is the largest discovered. Waterworld Planet (GJ1214b) is over 2.5 times bigger than earth.

The Hubble space telescope will be able to further analyze the new Waterworld Planet in the future.

Waterworld Planet (GJ1214b) was found by the Wipple Observatory in Arizona using eight telescopes.

The Hubble space telescope will be able to further analyze the new Waterworld Planet in the future.
Waterworld Planet (gj1214b) was found by the Wipple Observatory in Arizona using eight telescopes.
Waterworld Planet is more like earth than any planet discovered. There has been over 400 planets discovered in the last 2 decades and Waterworld Planet is the largest discovered.

Jan

5

Waterworld (Planet GJ1214b) is 40 years from Earth and could be up to 75% water.

This super Earth is roughly 200C and much larger than Earth.