The bending of starlight caused by Earth’s atmosphere could be used to create a giant telescope, one scientist suggests. It would require placing a detector out in space (illustrated).

There are hypothetical dark matter particles called “macros.” Macros might stream through space and constantly bombard Earth. Some could seriously injure any unlucky humans they pass through. But a lack of mysterious deaths suggests the biggest potential macros don’t exist.

Small enough to fit on a table, this mini Kibble balance measures smaller units of mass, such as a few grams, with amazing accuracy. A Lego figurine perched on the top right holds a 1-gram mass for scale.

A black hole (illustrated) isn’t completely black. It probably emits a faint haze of particles. Scientists have now taken the temperature of the haze around a lab-made black hole and confirms these objects are only mostly dark.