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An Increasingly Noisy Earth Is Drowning Out the Aliens

Any potential signal from ET is assumed false, until proven otherwise. Scientifically, taking this skeptical approach is the right thing to do, but emotionally, there’s always a tingle of excitement for researchers when a candidate signal is found.

September 26, 2023

Pristine Asteroid Sample Returns with 'Daredevil' OSIRIS-REx

On September 24, in a highly choreographed operation, OSIRIS-REx will return to Earth and drop off regolith material for scientists to study. The samples will land in the Utah desert, while the spacecraft itself speeds off to another destination in space. 

September 19, 2023

Webb and the Great Cosmic Question Mark

JWST data has provided new and intricate details of so many different objects in the universe: stars, galaxies, black holes, and even distant extrasolar planets, those outside our solar system. With the telescope's crisp infrared spectra, more detailed information can be garnered than ever before.

September 5, 2023

India Takes the Lead in Global Race to the Moon

India's Chandrayaan-3 mission achieved the near-impossible, successfully landing near the lunar south pole and becoming the first spacecraft to do so. India now stands alongside Moon exploration veterans: the United States, Soviet-era Russia, and China.

August 29, 2023

Supercluster Explains: Hypergolic Propellants

Hypergolic propellants are great for spacecraft. To start and stop the engine, you can just start and stop the flow of the two liquids. And you can keep them in tanks on your spaceship for years.

August 22, 2023

SETI Deploys New Instruments in Search for Alien Intelligence

The problem of distinguishing between technosignatures (true signals from alien technology) and radio frequency interference, or RFI, continues to be the major challenge for modern SETI.

August 15, 2023