Why Did Copernicus Reject Geocentrism?
Popular science history paints a picture of the Greek geocentric model dominating astronomical thought beginning around the 3rd century BCE,…
China Will Launch its Mars Sample Return Mission in 2028
While NASA's Mars Sample Return mission has experienced a setback, China is still moving forward with their plans to bring…
Artemis III Landing Sites Identified Using Mapping and Algorithm Techniques
Where would be the most ideal landing site for the Artemis III crew in SpaceX’s Human Landing System (HLS)? This…
One Step Closer to Solving the Mystery of Mars’ Lost Water
Few scientists doubt that Mars was once warm and wet. The evidence for a warm, watery past keeps accumulating, and…
JWST Reveals Star Formation at Cosmic Noon
Understanding the star formation rate (SFR) in a galaxy is critical to understanding the galaxy itself. Some galaxies are starburst…
The Final Vega Rocket Blasts Off
The European Space Agency (ESA) launched its final Vega rocket this week, lofting a Sentinel-2C Earth observation satellite into orbit.…
Ouch! A Monster Asteroid Crashed Into Ganymede 4 Billion Years Ago, Rolling it Over
Jupiter's moon, Ganymede, is a fascinating celestial body. Measuring 5,268 km (3,272 mi) in diameter, it is also the largest…
NASA’s Putting its Solar Sail Through its Paces
Those of you following the Advanced Composite Solar Sail System may have heard that its booms and sail are now…
There are Important Differences Between the Ice Caps on Mars
In the 17th century, astronomers Giovanni Domenica Cassini and Christian Huygens noted the presence of hazy white caps while studying the…
Archaeological Methods Reveal How Astronauts Work on the International Space Station
Archaeology is the study of human prehistory, so it seems incongruous to use its methods to study how humans behave…