PhysicsPhotonic laser thruster could power spacecraft from Earth The Photonic Laser Thruster can move a 750-gram object along a low-friction rail – a small step to using the technology to push satellites rapidly between planets ¿ìè¶ÌÊÓÆµ
VideoDan Hooper: What happened at the big bang? From the big bang onwards you might think we know a lot about the universe’s first fraction of a second. But that just isn’t true. For physicist, Dan Hooper, solving these questions involves radically rethinking what we think we know about the universe’s very early history. Video