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Astronomy and physics dominate Science top ten

Astronomy and physics dominate Science top ten

Confirmation that the universe is flat – expanding at just the right rate not to collapse – came from measurements of ripples in the cosmic background radiation left over from the big bang. Gamma-ray bursts have been one of the hottest topics in astrophysics in the 1990s and earlier this year astronomers found that a […]

Time unaffected by eclipse

Time unaffected by eclipse

The experiments were carried out by Thomas Udem from the Max-Planck Institute for Quantum Optics in Garching and colleagues. Udem and colleagues placed four atomic clocks – one rubidium clock, two caesium clocks and a hydrogen maser – in an air conditioned basement at Wessling in Germany and recorded their time difference every 4 seconds […]

Light glimpsed from extra-solar planet

Light glimpsed from extra-solar planet

Light from the planet is almost completely obliterated by the bright glare from the star. Although the reflected signal is 10-20,000 times weaker than the glare from tau Bootis, the planet studied by Cameron and co-workers is still the brightest and hottest planet among the extra-solar planets discovered so far. It also has one of […]

The decay route to teleportation

The decay route to teleportation

In quantum teleportation the quantum state of an object held by “Alice” is instantaneously sent to “Bob”. The new technique works by having two optical cavities that both contain a single trapped atom with three energy levels – two ground states and one excited state. The cavities are designed so that the photon emitted when […]

NASA revises Mars missions

NASA revises Mars missions

NASA’s Mission Control Center hoped that the Deep Space Two micoprobe had landed safely and gone into a ‘sleep’ safety mode. But all attempts to contact the probes have failed. During re-entry the spacecraft had to break communications with Earth, which means that no information about the probes’ final moments exist. However, researchers at NASA […]

Students reject revamped physics degree

Students reject revamped physics degree

In a series of interviews with a wide cross-section of students who remained in the physics programme, Booth and Ingerman discovered that many students could not adequately explain the links between the basic maths courses and the more advanced physics modules – for example, between Fourier analysis and electromagnetism. They explain that students do not […]

UK physics gets new funding boost

UK physics gets new funding boost

The JIF scheme is funded by the UK government and the Wellcome Trust, the world’s largest biomedical research charity. It was set up after several reports found that a shortage of state-of-the-art research equipment was making it difficult for universities in the UK to remain at the forefront of international research. Nearly £320m has been […]

XMM launches

XMM launches

XMM will be in a highly elliptical orbit to keep it away from interference caused by the Sun’s glare. The telescope’s large size and unusual orbit explains why XMM was launched from Ariane 5, which is the largest heavy-lift vehicle currently in service. XMM consists of three advanced X-ray telescopes. They each contain 58 high-precision […]

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