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Landing on a comet, nuclear fusion with lasers and a tractor beam are among the 10 physics breakthroughs of 2014, as chosen by a leading science magazine.
The Philae spacecraft's touchdown on comet 67P was named as the year's most significant advance by Physics World.
It was singled out for its "fundamental importance to space science".
In no particular order, the nine other breakthroughs chosen by Physics World are:
Light on the cosmic web (January): Researchers used the radiation emitted by a quasar as a "cosmic flashlight" to illuminate the hidden tendrils of dark matter that underlie the visible Universe.
Neutrinos from the Sun (August): The Borexino experiment in Italy detected neutrino particles from the main nuclear reaction that powers the Sun. The number of neutrinos it saw agrees with theories, suggesting we do understand what's going on inside our parent star.
Laser fusion milestone (February): Scientists at the National Ignition Facility (NIF) in California made a breakthrough in the long road to self-sustaining fusion when they managed to get more energy out of fusion reactions than was deposited in the fuel by NIF's powerful laser.
