Could aliens ever visit Earth? An aerospace scientist unpacks the challenges of interstellar spaceflight

To travel between solar systems, a spacecraft would need extremely sophisticated – if not impossible – technology.

The 'Time Exile' curse: Why Einstein's laws prove visiting aliens can never return home

Aliens could, in theory, reach Earth but would never truly go home again, according to physicists who say Einstein's laws of ...

SETI finds no evidence of alien tech on 3I/ATLAS interstellar comet

The SETI Institute is the latest to confirm what scientists have long suspected: the interstellar 3I/ATLAS comet is not an ...
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Comet 3I/ATLAS Reaches Perihelion Today – “Alien Spaceship” Hypothesis To Be Tested Once And For All

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London. Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and ...