Science

New research has found a rare and ancient type of rock scattered through the Baltimore area. It was once part of the floor of a primordial ocean and was thrust to the surface when the Appalachian Mountains formed.

Dr. Giraud V. Foster, who had dual careers as a director of the Johns Hopkins program in gynecology and obstetrics and as a part-time archaeologist, has died at 92.

Gregory P. Andorfer, former executive director and CEO of the Maryland Science Center who, during his tenure, oversaw the expansion of the Inner Harbor attraction, died Oct. 29.

Sarah C. “Sally-Lyn” Duff, a retired public school and Johns Hopkins University educator, died Saturday in Hunt Valley. The former Northwest Baltimore resident was 88.

Astronomers at the Johns Hopkins University in Baltimore used NASA’s Hubble Space Telescope to capture images of a supernova emitting as much energy in a few days while self-destructing as the sun does in several billion years.

The American Physical Society has named Morgan State University a historical site for being the birthplace of the National Society of Black Physicists in 1977.

University of Maryland graduate Jeanette Epps is going to be the first Black woman on an International Space Station crew. The launch is set for next year.

Monday, state health officials added 212 new coronavirus cases to Maryland’s tally. It’s the smallest daily case count since March 30, 2020 — about three weeks after Maryland recorded its first COVID-19 cases.

Leah DuRant, 75, of Frederick County is one of the 6.2 million Americans who have dementia, a cognitive disorder that impairs one’s ability to remember, think, reason and interact socially, and typically develops as people get older.

Most people with cancer or undergoing active treatment for the disease should get vaccinated against COVID-19 at the earliest opportunity, experts say — but it’s still not known how well protected they are from the virus after getting inoculated.

Maryland health officials reported yet another day of declining coronavirus infection rates and hospitalizations due to the disease as Gov. Larry Hogan defended his decision to lift the statewide mask mandate during a television appearance Sunday morning.

The recent killing of three people in Baltimore County is prompting questions about how Maryland handles cases of people who may be in a mental health crisis.

With Marylanders weighing whether to continue wearing masks indoors in light of Gov. Larry Hogan’s lifting of the statewide mask mandate, hospitalizations continued to drop statewide.

Marylanders as of Saturday are no longer required to wear masks in most settings to curb the spread of the coronavirus, Gov. Larry Hogan announced Friday evening. Here’s what you need to know.

The world has lost more than one quarter of its land-dwelling insects in the past 30 years, according to researchers.

As coronavirus spreads and new information arrives, church, mosque and synagogue leaders weigh their options, from cancellation of services to adjustments in worship practice.

Two Johns Hopkins professors believe a new, permanent calendar, perhaps named for President Trump, would be a lot more simple.

Since SpaceX began launching its Starlink internet satellites in May of 2019, astronomers have spoken up about the brightness of the train of spacecraft in the sky and its affect on their data collection. A potential solution is in the works, but scientists don't yet know if the dark coating they tested will work. And in the meantime, more Starlink launches are coming, with the next one scheduled for Monday from the Space Coast.

A Georgia man who previously taught at Johns Hopkins has died of injuries suffered when he was struck by a pickup on New Year’s Eve in Towson.

The site was discovered when the state Department of Transportation began a bridge construction project.

Dr. Philip Kenerick “Ken” Maher, a retired executive in the industrial chemical field, died of cancer complications Nov. 25 in Towson. The former North Homeland resident was 88.

With coronavirus concerns persisting, as well as a smaller overall audience for public health reasons, Gov. Larry Hogan’s administration decided to nix the state tent this year.

The first 12-to-15-year-olds in Maryland started getting the Pfizer/BioNTech coronavirus vaccine Thursday.

Gaithersburg-based Novavax has begun a trial of its COVID vaccine on children ages 12-17 at the University of Maryland School of Medicine.

A day after Maryland Gov. Larry Hogan announced the state would further ease coronavirus restrictions and set a vaccination benchmark for lifting the indoor mask mandate, several key COVID-19 metrics continued to decline, according to state health department data.

Psilocybin, the psychedelic component of magic mushrooms, could help treat depression and other mental health disorders, with or without the hallucinogenic experience.

Maryland Gov. Larry Hogan held a news conference Wednesday announcing loosened coronavirus restrictions. Here's what the news could mean for you.

Once at least 70% of adults in Maryland get at least one dose of the coronavirus vaccine, Gov. Larry Hogan says the state will lift its mandate requiring wearing masks in indoor public spaces.