The Colorado Ultraviolet Transit Experiment (CUTE) spacecraft is about the size of a cereal box. It has also recorded incredibly detailed measurements of the atmospheres of planets hundreds of light-years from Earth.

A spacecraft the size of a cereal box has collected precise measurements of the atmospheres of large and puffy planets called “hot Jupiters.” The findings, led by a team from the University of Colorado Boulder, could help reveal how the atmospheres around these and a host of other worlds are escaping into space.

The diminutive spacecraft, which measures just 14 inches in length, may be cute, but its scientific findings are anything but...

McGill University researchers have made a breakthrough in diagnostic technology, inventing a ‘lab on a chip’ that can be 3D-printed in just 30 minutes. The chip has the potential to make on-the-spot testing widely accessible.

As part of a recent study, the results of which were published in the journal Advanced Materials, the McGill team developed capillaric chips that act as miniature laboratories.

Unlike other computer microprocessors, these chips are single-use and require no external power source — a simple paper strip suffices.

They function through capillary action — the very phenomena by which a spilled liquid on the kitchen table spontaneously wicks into the paper towel used to wipe it up.

“Traditional diagnostics require peripherals, while ours can circumvent them...

Marking its 1,000th Martian day on the Red Planet, NASA’s Perseverance rover recently completed its exploration of the ancient river delta that holds evidence of a lake that filled Jezero Crater billions of years ago. The six-wheeled scientist has to date collected a total of 23 samples, revealing the geologic history of this region of Mars in the process.

One sample called “Lefroy Bay” contains a large quant...