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Best gravel bike helmets 2026: Top-scoring off-road helmets reviewed and lab tested

Maximise on off-road protection, ventilation and aerodynamics with the best gravel bike helmets ...

The Holy Grail for Light Speed Travel Is Unlimited ‘Vacuum Energy’—And Scientists Desperately Want to Harness It

Casimir cavities are mysterious spaces between microscopic metal plates in a vacuum. Areas of diminished energy between the ...

Republicans Are Scrambling To Avert A ‘Massacre’ In Texas Senate Race

Texas Attorney General Ken Paxton is leading the GOP primary to replace incumbent Sen. John Cornyn (R-Texas), setting off alarm bells in the party.