tests of general relativity

  • Lunar Satellite Shoots Lasers to a Moon Lander for the First Time

    Lunar Satellite Shoots Lasers to a Moon Lander for the First Time

    Passant Rabie

    NASA’s diligent lunar orbiter transmitted a laser beam to a dome-shaped aluminium device the size of a billiard ball on India’s Vikram lander, pinging its location on the Moon. This laser-enabled technique could one day help NASA astronauts find their way on the lunar surface. The Lunar Reconnaissance Orbiter (LRO) pointed its laser altimeter instrument,…