Most extreme life-planet

• The most extreme for life on the planet

Recently, astronomers have discovered the hottest planet, which could well be a branch of hell - the temperature is even higher here than at some of the stars. But that's not all: in recent years, NASA experts discovered seven planets, each of which can boast incredibly extreme conditions.

Hottest

KELT-9b

KELT-9 star in two and a half times as massive as the sun, and the planet KELT-9b is very close to it. On the surface temperature reaches 4300 degrees Celsius colossal - for comparison, Mercury at the same temperature is less than some 430 degrees.

The coldest

OGLE-2005-BLG-390Lb

Ice Queen could live here in complete comfort: the temperature on this planet never rises above -223 degrees Celsius. Ice giant is not able to hold its own atmosphere and most of its gas on the surface of frozen snow.

The greatest

DENIS-P J082303.1-491201 b

NASA researchers for several years arguing whether it is possible to call DENIS-P object J082303.1-491201 b planet - it's too big it is. This giant 28 times more massive than Jupiter, which automatically puts it in first place among all ever discovered by man planets.

smallest

Kepler-37b

Dimensions Kepler-37b are approximately equal to the size of our moon. Solid world could well become the Earth, if it were not too close to its star. Unfortunately, Kepler-37b surface temperature is extremely high, liquid water, and therefore life, is not here.

The oldest

PRS B1620-26 b

Age PRS B1620-26 b as much as 12, 7 billion years. The universe itself is older than that of the gas giant only a billion years - just imagine how many miracles could see the inhabitants of PRS B1620-26 b.

The youngest

V830 Tauri

But V830 Tauri formed relatively recently, only 2 million years ago. And she, just like a living creature, is still growing! It is very safe: its mass planet gaining a collision with other celestial bodies and the asteroid "bombing" occur several times per day.

Venus

And the finalist list is not far away, in our solar system. In fact, we just do not know how long to observe weather conditions on distant exoplanets, and therefore have to settle for those that are closer. Venus wins first place in the category of "planet with the worst weather": its atmosphere is moving faster than the planet itself rotates. Besides, it is 100 times more dense on the Earth's atmosphere and consists of 95% carbon dioxide. Adds joy greenhouse effect, due to which on the surface of Venus is hot at 460 degrees Celsius.