09/02/2021

Quantum causal loops

Normally, causal influence is assumed to go only one way—from cause to effect—and never back from the effect to the cause—the ringing of a bell does not cause the pressing of the button that triggered it. Now, researchers ...

A pioneering NASA mini weather satellite ends its mission

After nearly 2.5 years in orbit, a shoebox-size weather satellite phoned home one last time before plunging into Earth's atmosphere and burning up on Dec. 24, 2020. RainCube (Radar in a CubeSat) was a technology demonstration ...

NASA's OSIRIS-REx to fly a farewell tour of Bennu

On April 7, NASA's OSIRIS-REx mission will give asteroid Bennu one last glance before saying farewell. Before departing for Earth on May 10, the OSIRIS-REx spacecraft will perform a final flyby of Bennu—capturing its last ...

New factor in the carbon cycle of the Southern Ocean identified

Plankton are small organisms that drift with the currents in the seas and oceans. Despite their small size, they play an important planetary role due to their immense quantity. Photosynthesizing plankton, known as phytoplankton, ...

The invisible killer lurking in our consumer products

Consumer products such as food, cosmetics and clothes might be filled with nanomaterials, unbeknownst to us. The use of nanomaterials remains unregulated and they do not show up in lists of ingredients. This is a cause of ...

Engineers 3-D-print a miniaturized spectrometer

The miniaturization of spectroscopic measurement devices opens novel information channels in medical science and consumer electronics. Scientists of the University of Stuttgart, Germany, developed a 3-D-printed miniature ...

page 10 from 12