Traffic is one of the biggest problems plaguing cities today. Idling cars cause increased emissions, more traffic means more accidents, and it is, of course, annoying. Meet traffic scientist, Dr. Alex Bayen who is working to solve...

Why doesn't anything go faster than the speed of light? Want to see the world through the eyes of a scientist?

How the universe works: a black hole is surprisingly hard to fall into.

Insane (for the time) Voyager engineering.

Almost everything you could want to know about Callisto.

The journey of Voyager I and II beyond the orbit of Neptune.

Hubble's images of Icarus, Earendel and HD1.

Almost everything you could want to know about New Horizon's visit to Arrokoth.

The Halley Armada, Giotto, Vega 1 and 2, Suisei and Sakigake, all visited Halley's Comet at roughly the same time in 1986. What did they discover? Why was this such a groundbreaking mission?

NASA's successor to the Deep Space Network, infrared lasers and LCRD.

This video discusses the prediction and discovery of a supernova in the galaxy SP1149, located billions of light years away. Scientists predicted the supernova would occur in November 2015, but the event was captured earlier due to...

The potential energy curve of the H₂ molecule illustrates how the energy of the system changes as the two hydrogen atoms approach or move apart. As the atoms come closer, the attractive forces between the positively charged nuclei and...

Lattice energy depends on ion size, charge, and the arrangement of ions in the crystal lattice. Smaller, highly charged ions increase lattice energy.

Supermassive black holes and their distribution in the universe.

When will the next naked-eye supernova event happen? What will it look like? Will we be safe? Astrum Answers!

How big do you think our solar system is? Up until Pluto? A bit beyond? How big can other solar systems get? Astrum answers!

Scientists can't use tape measures, rulers or lasers to measure the astronomical distances to stars and galaxies, so how do we do it?

Calculus is a branch of mathematics that deals with very small changes. Calculus consists of two main segments—differential calculus and integral calculus. Differential calculus primarily deals with the rate of change of things, while...

The legendary Greek philosopher Socrates first popularized the idea that the Earth was round instead of flat. He observed a lunar eclipse and realized that the shadow on the moon due to the Earth was curved, which prompted him to deduce...

Huntsman spider also called clock spider belongs to the family of Sparassidae. The Sparassidae family of spiders have eight forward facing eyes giving them an enigmatic look. What makes huntsman spider different from ordinary spiders is...

The beard appears as dots of color when it first begins growing back because each hair is still tiny and short. When the stubble has just begun to sprout, the young facial hair emerges as small black or brown dots on fair skin. Seen from...

Planetary orbits are elliptical because gravitational interaction over time changes the delicate balance of mass, velocity and distance from the star which otherwise keeps planetary orbit circular. For a very long time, from Ptolemy to...

An increase in Earths rotational speed could have various impacts on life: ranging from increased earthquakes and tsunamis to a shortening of the length of the day. People could be floating in central Africa while the polar ice might...

From ancient civilizations to modern breakthroughs, learn about the nine most important cosmic discoveries that changed the way we look at our Sun, Moon and beyond. Learn how Copernicus challenged the status quo, Kepler unveiled the...