Study Shedding New Light on Earth’s Global Carbon Cycle could Help Assess Liveability of Other Planets

Research has uncovered important new insights into the evolution of oxygen, carbon, and other vital elements over the entire history of Earth – and it could help assess which other planets can develop life, ranging from plants to animals and humans.

The study, published today in Nature Geoscience and led by a researcher at the University of Bristol, reveals for the first time how the build up of carbon-rich rocks has accelerated oxygen production and its release into the atmosphere.

Until now the exact nature of how the atmosphere became oxygen-rich has long eluded scientists and generated conflicting explanations.

As carbon dioxide is steadily emitted by volcanoes, it ends up entering the ocean and forming rocks like limestone.

As global stocks of these rocks build up t...

Read More

Nasal Spray Safely Treats Recurrent Abnormal Heart Rhythms, Clinical trial suggests

drawing of heart with ecg line emanating from it
Credit: Shutterstock

A clinical trial led by Weill Cornell Medicine investigators showed that a nasal spray that patients administer at home, without a physician, successfully and safely treated recurrent episodes of a condition that causes rapid abnormal heart rhythms. The study, published March 25 in the Journal of the American College of Cardiology, provides real-world evidence that a wide range of patients can safely and effectively use the experimental drug, called etripamil, to treat recurrent paroxysmal supraventricular tachycardia (PSVT) episodes at home, potentially sparing them the need for repeated hospital trips for more invasive treatments.

The study is the latest in a series of studies by lead author Dr...

Read More

Could New Technique for ‘Curving’ Light be the Secret to Improved Wireless Communication?

A study that could help revolutionize wireless communication introduces a novel method to curve terahertz signals around an obstacle. Illustration provided by the Mittleman Group

A study that could help revolutionize wireless communication introduces a novel method to curve terahertz signals around an obstacle.

While cellular networks and Wi-Fi systems are more advanced than ever, they are also quickly reaching their bandwidth limits. Scientists know that in the near future they’ll need to transition to much higher communication frequencies than what current systems rely on, but before that can happen there are a number of — quite literal — obstacles standing in the way.

Researchers from Brown University and Rice University say they’ve advanced one step closer to getting around t...

Read More

CSIRO Telescope detects unprecedented Behaviour from Nearby Magnetar

Artist’s impression of a magnetar with magnetic field and powerful jets. ©  CSIRO

Researchers using Murriyang, CSIRO’s Parkes radio telescope, have detected unusual radio pulses from a previously dormant star with a powerful magnetic field.

New results published today in Nature Astronomy describe radio signals from magnetar XTE J1810-197 behaving in complex ways.

Magnetars are a type of neutron star and the strongest magnets in the Universe. At roughly 8,000 light years away, this magnetar is also the closest known to Earth.

Most are known to emit polarised light, though the light this magnetar is emitting is circularly polarised, where the light appears to spiral as it moves through space.

Dr Marcus Lower, a postdoctoral fellow at Australia’s national science agency...

Read More