What if Earth was 50\% bigger?

That radius would be about 9680 kilometers (Earth is 6670 km). If our planet was 50\% larger in diameter [while maintaining the same density], we would not be able to venture into space, at least using rockets for transport. The Moon’s escape velocity is a mere 21.3\% of Earth’s.

What happens if the Earth’s mass doubled?

If Earth’s mass doubled then the acceleration due to gravity, which we normally feel as 9.81 m/s, would also double. So you can expect an acceleration of about 19.62 m/. Do keep in mind that this assumes that the volume of Earth would not change. So it’s likely that everybody and everything will die.

How large can a habitable planet be?

Radius. The radius of a potentially habitable exoplanet would range between 0.5 and 1.5 Earth radii.

When will the Earth become uninhabitable?

The evaporation of the Earth’s oceans would be well underway by 1 billion years from now. We can assume that millions of years before this, Earth will have become uninhabitable. Life more complex than a bacterium has only been around for 600 million years, so it looks like we are about half way through the ‘Golden Years’.

What makes a planet more habitable than Earth?

Some of these systems also contain stars — potentially — even friendlier to life than our Sun. These superhabitable systems are generally warmer, wetter, larger and older than Earth, potentially making these worlds more habitable than Earth.

Would Earth be habitable if it were a super-Earth?

Based on the super-Earths that scientists have found so far, we can’t really be certain Earth would even be habitable if it were a super-Earth. The Kepler space telescope was best at detecting planets close to their star — much closer than Earth is to the sun.

What if the Earth were twice as Big?

Part 7: What if Earth were twice as big? If Earth’s diameter were doubled to about 16,000 miles, the planet’s mass would increase eight times, and the force of gravity on the planet would be twice as strong.