Even if Earth does survive, it won’t be pretty. The temperature of our planet will be about 1,300 degrees C, hot enough to ...

The future of the sun. In approximately five billion years, our own sun will transition to the red giant phase. When it expands, its outer layers will consume Mercury and Venus and also reach Earth.

The Sun, our life-giving star, is slowly dying. In about 5 billion years, it will exhaust its fuel and transform into a red giant, altering the solar system forever. But long before that, the Sun’s ...

Discover interesting facts about the sun, the solar system's central star that supports all life on Earth.

As summer settles in and temperatures climb in the Northern Hemisphere, it’s impossible to forget just how much the sun ...

Once a star reaches the end of its life stage and becomes a red giant, any chance for life is extinguished. This is also true for our Sun, which is expected to turn into a red giant in about five ...

The layers outside the solar core will expand and, as a result, cool down. ... The red giant phase ends when the Sun’s core gets hot enough (about 100 million kelvins) ...

The Sun will most likely eject its outer layer more slowly than those stars and will stay in its red-giant phase several times longer. But a great deal is still unknown about the Sun's last act.

The explosion of a star, called a supernova, is an immensely violent event. It usually involves a star more than eight times ...

In about 5 billion years, our sun will become a red giant, puffing up and expanding as it releases layers of material and likely evaporating the solar system’s inner planets, although Earth’s ...

In about 5 billion years, our sun will become a red giant, puffing up and expanding as it releases layers of material and likely evaporating the solar system’s inner planets, although Earth’s ...