Explains how Earths day length could extend to 25 hours over hundreds of millions of years due to lunar tides, and how this ...
Behind the scenes, 2025 saw incremental but real advances in Gaganyaan, the Indian human spaceflight program, preparedness, ...
New simulations examine whether the seven planets in the TRAPPIST-1 system could host moons, showing that only small, close-orbiting moons could remain stable over long periods ...