Why Interstellar Objects Like ʻOumuamua and Borisov May Hold Clues to Exoplanets
The detection of two celestial interlopers careening through our solar system has scientists eagerly anticipating more.
Bridging The Gap of War: Einstein’s Eclipse
Astronomer Arthur S. Eddington argued that astronomy should be above politics, even when politics leads to world war.
100 Years after the “Great Debate”: How Edwin Hubble Expanded the Cosmos
In 1924, Edwin Hubble found proof that the Milky Way isn't the only galaxy in the Universe.
Anaxagoras and the Eclipse: The First to Get It Right
Scholars sometimes credit Thales or Empedocles of Acragas with the first correct theory of solar eclipses, but it was Anaxagoras who had the science right.
Astronomers Use AI to Shed Light on Dark Energy
A new measurement offers insights on the density of the mysterious force driving the Universe’s expansion.
Central American Volcanoes Offer Clues to Earth’s Geological Evolution
Along 1,100 kilometers, from Mexico to Costa Rica, lies the Central American volcanic arc, where the variety of magma types make for a geological paradise.
Why TRAPPIST-1 Is Our Favorite Alien Planetary System
The TRAPPIST-1 system is a treasure trove of possibilities and questions. Observations by JWST have just begun.
Ancient Black Hole Challenges Our Understanding of the Early Universe
The Big Bang theory is not threatened, but astrophysicists have some explaining to do.
Why the Worst Weather on Earth Is in New Hampshire
A combination of factors makes the weather at New Hampshire’s Mount Washington arguably the most brutal in the world.