Physics
- Physics
Physicists get a first glimpse of the elusive isotope nitrogen-9
With seven protons and two neutrons, the lopsided atomic nucleus of nitrogen-9 pushes the limits of what can even be considered a nucleus.
- Physics
How quantum ‘squeezing’ will help LIGO detect more gravitational waves
An upgrade to LIGO that comes from exploiting a quantum rule known as the Heisenberg uncertainty principle makes it easier to detect spacetime ripples.
- Physics
Tiny accelerators get electrons up to speed using lasers
In a first, chip-scale accelerators revved up electrons while also confining them into a beam.
- Physics
Vela’s exploded star is the highest-energy pulsar ever seen
A spinning dead star about 1,000 light-years away, in the constellation Vela, raises questions about how pulsars can emit such extreme radiation.
- Chemistry
The development of quantum dots wins the 2023 Nobel prize in chemistry
Moungi Bawendi, Louis Brus and Alexei Ekimov split the prize for their work in creating nanoparticles whose properties depend on their size.
- Physics
Technique to see the ultrafast world of electrons wins 2023 physics Nobel
Physicists Pierre Agostini, Ferenc Krausz and Anne L’Huillier won for work creating light bursts that last billionths of a billionth of a second.
- Physics
50 years ago, scientists dreamed of lasers that could kick off nuclear fusion
In the 1970s, lasers that could initiate nuclear fusion were a distant dream. Now, scientists are using such lasers to achieve fusion “ignition.”
- Chemistry
50 years ago, the quest for superheavy elements was just getting started
In the 1970s, scientists were on the hunt for superheavy elements. They’ve since found more than a dozen and are searching for more.
- Space
Clara Sousa-Silva seeks molecular signatures of life in alien atmospheres
Quantum astrochemist Clara Sousa-Silva studies how molecules in space interact with light, offering clues to what distant objects are made of.
- Physics
A laser gyroscope measured tiny variations in the lengths of days on Earth
An underground gyroscope known as ‘G’ uses laser beams traveling in opposite directions to precisely measure Earth’s rotation.
- Physics
Scientists have two ways to spot gravitational waves. Here are some other ideas
From lasers in space to falling atoms on Earth, researchers are cooking up ways to sense gravitational waves that current methods can’t detect.
- Particle Physics
Scientists finally detected oxygen-28. Its instability surprised them
The elusive isotope was predicted to be very stable, thanks to “magic” numbers of neutrons and protons. It fell apart almost immediately.
