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Communicating with a relativistic spacecraft gets pretty weird
Someday, in the not-too-distant future, humans may send robotic probes to explore nearby star systems.
These robot explorers will likely take the form of lightsails...
Europa clipper could help discover if Jupiter’s moon is habitable
Since 1979, when the Voyager probes flew past Jupiter and its system of moons, scientists have speculated about the possibility of life within Europa.
Based...
Eris could be slushier than Pluto, shows study
In 2005, astronomer Mike Brown and his colleagues Chad Trujillo and David Rabinowitz announced the discovery of a previously unknown planetoid in the Kuiper...
Why don’t we see robotic civilizations rapidly expanding across the universe
In 1950, while sitting down to lunch with colleagues at the Los Alamos Laboratory, famed physicist and nuclear scientist Enrico Fermi asked his famous...
Under some conditions, comets could deliver organic molecules to planets
Approximately 4.1 to 3.8 billion years ago, the planets of the inner Solar System experienced many impacts from comets and asteroids that originated in...
Civilizations could use gravitational lenses to transmit power from star to star
In 1916, famed theoretical physicist Albert Einstein put the finishing touches on his Theory of General Relativity, a geometric theory for how gravity alters...
Magnetic fusion plasma engines could carry us across the solar system and into interstellar...
Missions to the Moon, missions to Mars, robotic explorers to the outer Solar System, a mission to the nearest star, and maybe even a...
Astronomers are working to put a radio telescope on the far side of the...
The Moon will be a popular destination for space programs worldwide in the coming years.
By 2025, NASA’s Artemis III mission will land the first...
If Earth is average, we should find extraterrestrial life within 60 light-years
In 1960, while preparing for the first meeting on the Search for Extraterrestrial Intelligence (SETI), legendary astronomer and SETI pioneer Dr. Frank Drake unveiled...
Every night and every morning, the moon rumbles with tiny quakes
The Moon was geologically active between 3.7 and 2.5 billion years ago, experiencing quakes, volcanic eruptions, and outgassing.
Thanks to the Moon being an airless...