Archivo: Science Alert

Our DNA is packed into our nucleus pretty damn tightly. Each chromosome is one looong DNA molecule wrapped around proteins called histones, like a very tiny thread on very tiny spools.

Over the last few years, as we have been able to peer back deeper and deeper into the early Universe, astronomers have been discovering something extremely puzzling.


There is no sea creature whose name inspires terror – rightly or wrongly – as much as the great white shark.

Astronauts lose decades’ worth of bone mass in space that many do not recover even after a year back on Earth, researchers said Thursday, warning that it could be a “big concern” for future missions to Mars.

Three-dimensional models of astronomical objects can be ridiculously complex. They can range from black holes that light doesn’t even escape to the literal size of the Universe and everything in between.

From orbit, this landscape on Mars looks like a lacy honeycomb or a spider web. But the unusual polygon-shaped features aren’t created by Martian bees or spiders; they are actually formed from an ongoing process of seasonal change from created from water ice and carbon dioxide.


A strange gap between theoretical predictions and experimental results in a major neutrino research project could be a sign of the elusive ‘sterile’ neutrino – a particle so quiet, it can only be detected by the silence it leaves in its wake.

Climate change is slowing down the conveyor belt of ocean currents that brings warm water from the tropics up to the North Atlantic.

Our planet’s protective shell isn’t quite what it used to be. Over the past two centuries its magnetic strength has taken a nosedive, and nobody has the foggiest idea why.

The Kīlauea volcano in Hawaii is said to be the world’s most active volcano, and yet we still don’t really know how it was born.