In about one billion years, the solar luminosity will be 10% higher than at present. This will cause the atmosphere to become a “moist greenhouse”, resulting in a runaway evaporation of the oceans. As a likely consequence, plate tectonics will come to an end, and with them the entire carbon cycle.

about 5.5 billion years

Stars like our Sun burn for about nine or 10 billion years. So our Sun is about halfway through its life. But don’t worry. It still has about 5,000,000,000—five billion—years to go.

The authors of this study estimate that the total habitable lifetime of Earth – before it loses its surface water – is around 7.2 billion years, but they also calculate that an oxygen-rich atmosphere may only be present for around 20%–30% of that time.

Our planet’s ultimate destiny is to be baked, blasted, and eventually disintegrated. There’s nothing we can do to prevent this cataclysm. Yet according to scientists who study the far future, including Yale University astronomer Gregory Laughlin, the prospect for life is, oddly, rather bright.

For about a billion years, the sun will burn as a red giant. Then, the hydrogen in that outer core will deplete, leaving an abundance of helium. Astronomers estimate that the sun has about 7 billion to 8 billion years left before it sputters out and dies.

4.543 billion years

“The sun is heading toward solar minimum now. Sunspot counts were relatively high in 2014, and now they are sliding toward a low point expected in 2019-2020. “While intense activity such as sunspots and solar flares subside during solar minimum, that doesn’t mean the sun becomes dull.

That’s about 3% closer than average, which means our planets receives more intense radiation as heat from the Sun. The Sun will also be slightly larger in our daytime sky. It’s a cosmic occasion called perihelion—the point of the Earth’s orbit that is nearest to the Sun.

Predicted Sunspot Number And Radio Flux

about 93,000,000 miles

Venus

Venus is the hottest planet in the solar system. Although Venus is not the planet closest to the sun, its dense atmosphere traps heat in a runaway version of the greenhouse effect that warms Earth.

Trapped air in the valley walls can actually descend and be heated by something called adiabatic compression. Descending air encounters higher atmospheric pressure and is compressed (and warmed). For this reason, summer low temperatures can remain in the upper 80s or low 90s.

-375 to -400 degrees Fahrenheit

But when Pluto is farthest from Earth, that message would travel for over 6.5 hours before reaching its destination. Depending on where it is in its orbit, you can expect freezing temperatures on Pluto that vary from minus 369 degrees Fahrenheit (minus 223 Celsius) to minus 387 F (minus 233 C).

Answer. The International Astronomical Union (IAU) downgraded the status of Pluto to that of a dwarf planet because it did not meet the three criteria the IAU uses to define a full-sized planet. It contains the asteroid belt as well as the terrestrial planets, Mercury, Venus, Earth, and Mars.

Oymyakon

The average body temperature is 98.6 degrees Fahrenheit. At an internal temperature of 95 degrees, humans can experience hypothermia, shivering and pale skin. At 86 degrees, they become unconscious and, at 77 degrees, cardiac arrest can occur. Most people cannot survive if their core temperature drops to 75 degrees.