Expelled from the human body—by a cough, say, or a well-placed sneeze–the virus can settle on surfaces, where it sits, microscopic and immobile, for hours or even days. Watch the full video:

“To really clean, from a scientific standpoint, from a technique standpoint, is really an art for a lot of folks." An inept cleaner will miss pathogens. And taking off protective equipment incorrectly can expose cleaners to infection

New research shows the presence and actions of robots affect the way humans relate to other humans.

Prohibiting spouses or doulas during labor and delivery may disproportionately affect populations such as black women, who are already vulnerable to disbelief and mistreatment by hospital staff, writes @mclemoremr  in Opinion.

Astronomers are on the hunt for the remnants of the neutron-star collision that gave Earth its precious metals.

Could chloroquine treat coronavirus? Here are 5 questions answered about a promising yet problematic and unproven use for an antimalarial drug

Denser cities could spare climate but also increase coronavirus transmission

Marine animal populations have been shifting away from the equator and toward the poles during the course of the past century.

Several states are reporting only positive COVID-19 test results from private labs, a practice that paints a misleading picture of how fast the disease is spreading.

Deep-learning algorithms are peering into MRIs and x-rays with unmatched vision, but who is to blame when they make a mistake?