Explainer Space
How strong is gravity on Saturn? Near Earth’s, from equator to pole
Gravity on Saturn is close to Earth’s: about 9.0 m/s² at the equator (0.92 times Earth’s) and 12.1 m/s² at the poles (1.24 times), with a mean of 11.2 m/s²,…
Browse the archive
Category: Physics
Explainer Physics
How strong is gravity on Jupiter? About 2.4 to 2.7 times Earth’s
Gravity on Jupiter is about 2.4 to 2.7 times Earth’s: roughly 23.1 m/s² at the equator and 27.0 m/s² at the poles, with a mean of 25.9 m/s², according to…
Explainer Space
Phoenix A vs TON 618 vs Holmberg 15A: which black hole is heaviest?
There is no clean, confirmed winner: TON 618 is estimated at roughly 41–66 billion solar masses (about 8–13 × 10⁴⁰ kg), Holmberg 15A’s black hole at 40 ± 8 billion…
Explainer Earth
What If The Earth’s Core Stops Spinning?
7000 kilometres wide, Earth’s Inner core has shown signs of stopping and reversing its spin since 2009. But the question arises, what would be its consequences? The spinning of Earth’s…
Explainer Physics
How Long Does It Take To Travel One Light Year?
A light year is the distance light travels in one year. Light moves very fast, about 299,792 kilometers per second. If we could travel that fast, we would take one…
Explainer Physics
What Is The 3-Body Problem And Why Is It So Hard To Solve?
The essence of the 3-body problem is: how to predict and stabilize the orbits of 3 interacting bodies. The third object’s presence causes wild movements, potentially sending the interacting bodies…
Explainer Physics
Where Do Microscopic Black Holes Exist?
Microscopic black holes, also referred to as quantum mechanical or mini black holes, are hypothetical small holes that have fascinated scientists and the public for decades. They are very tiny…
Explainer Physics
Will Hot Water Freeze Faster Than Cold Water?
The idea of whether hot water freezes faster than cold water is known as the Mpemba effect. This doesn’t always happen and depends on different things like how much water…
Explainer Astronomy
Jupiter vs the Sun: how many Jupiters fit inside the Sun?
The Sun has roughly 1,000 times Jupiter’s volume. That is why the usual answer says about 1,000 Jupiters could fit inside the Sun. The number is a volume comparison, not…