Superpowerful lasers for next-generation technologies are closer to existence.
- A new study calculates how to create high-energy gamma rays.
- Physicist Allen Mills proposes using liquid helium to make bubbles of positronium, a mixture with antimatter.
- Gamma ray lasers can lead to new technologies in space propulsion, medical imaging and cancer treatment.
From anti-gravity pens to cool model kits, these space-themed gifts will make any star gazer very happy.
- Since the dawn of time humans have been fascinated with the stars and with space.
- This holiday gift guide will help you shop for the NASA fan on your list.
- From socks to laser projectors, there is something for space fans of all ages.
The object, originally dubbed "Ultima Thule," was renamed to "Arrokoth" due to the connection between the word "Thule" and the Nazis.
- When the New Horizons probe originally visited Arrokoth, the most distant celestial body to have ever been visited by a spacecraft, NASA researchers nicknamed the body "Ultima Thule."
- Thule refers to a distant mythological civilization. Although it originated in ancient Greek and Roman literature, the Nazis co-opted the term to refer to a mythological homeland of the Aryan people.
- The new name, Arrokoth, is Powhatan for "sky."
The idea that celestial objects exist within utterly immense cosmic structures is becoming inescapable.
- New findings in astronomy are making some astronomers doubt our basic model of the universe.
- Alignments of celestial objects suggest that they may be embedded in large-scale structures.
- Galaxies too far apart to be influencing each other are moving through space together.
Dinosaurs never left Earth, but they still traveled millions of miles through the Milky Way galaxy.
- A new video shows how life has evolved on Earth during the planet's most recent revolution around the Milky Way, also known as one galactic year.
- A galactic year is about 220 million years, and it was the beginning of the Jurassic period the last time Earth was at this point in its revolution.
- How will Earth look on its next galactic birthday? It's impossible to know for sure, but a few events seem inevitable.