What if Earth Stopped Orbiting the Sun?

TL;DR

If Earth suddenly stopped in its orbit, it would lead to a catastrophic journey towards the Sun in 65 days.

Transcript

In a previous episode I investigated what would happen if the Earth stopped turning entirely, either locking to the Sun or the background stars. If it happened quickly, then results would be catastrophic, turning the whole planet into a blended slurry of mountains, oceans and trees, hurting past a hundreds of kilometers per hour. And if it happened... Read More

Key Insights

• 💄 Earth's orbital velocity of 30 km/s is crucial to counteract the Sun's gravitational pull.
• 🥺 A sudden halt in Earth's orbit would lead to catastrophic consequences due to inertia and gravity.
• 🍂 Without centripetal force, Earth would fall towards the Sun, experiencing increasing temperatures.
• 🥳 The journey towards the Sun, if Earth stopped in its orbit, would take around 65 days.
• 🧑‍🌾 In the far future, the Sun's expansion could potentially drag Earth into it, resulting in a similar scenario.
• 🙅 The scenario of Earth halting in its orbit and falling into the Sun is impossible under current circumstances.
• 👾 Patreon supporters help create space and astronomy content for Universe Today.

Questions & Answers

Q: What would happen if Earth suddenly stopped in its orbit?

If Earth suddenly stopped in its orbit, objects on the leading side would fly into space, while those on the trailing side would be pulverized against Earth due to inertia and gravity.

Q: How long would it take for Earth to fall into the Sun if it stopped in its orbit?

According to calculations, it would take approximately 65 days for Earth to spiral into the Sun if it suddenly stopped in its orbit, with temperatures increasing drastically.

Q: Is the scenario of Earth suddenly stopping in its orbit realistic?

The scenario of Earth suddenly halting in its orbit is completely impossible due to the laws of physics, but there is a plausible scenario where Earth could be dragged into the Sun in the distant future.

Summary & Key Takeaways

• Earth's sudden halt in orbit would result in catastrophic consequences, with objects on leading side flying into space and those on trailing side being pulverized.

• Without the centripetal force counteracting gravity, Earth would fall towards the Sun, getting progressively hotter until it evaporates.

• While the scenario is impossible, a plausible scenario involves Earth being dragged into the Sun in the far future due to its expansion.