From bicycles to rockets, learning through experience – whether human or machine – is shaping the future of space exploration.

AI is making spacecraft propulsion more efficient – and could even lead to nuclear-powered rockets

Ever seen the northern lights? You have a magnetic layer in Earth’s atmosphere to thank for those beautiful displays. But the magnetosphere does a lot more than create auroras.

Earth’s magnetic field protects life on Earth from radiation, but it can move, and the magnetic poles can even flip

Most astronauts who menstruate pause their cycle with hormones before hitting the stars, but in the future, we'll need more options.

Scientists sent a menstrual cup to space. This is how it went

The Geminids return with near-perfect viewing conditions, offering skywatchers up to 150 meteors an hour under dark December skies.

Geminid meteor shower 2025 peaks next week. Here's what you need to know about this year's best meteor shower

On Episode 188 of This Week In Space, Rod Pyle and Tariq Malik discuss Jared Isaacman, the billionaire entrepreneur and private astronaut, who took had his second confirmation as NASA's next leader.

This Week In Space podcast: Episode 188 — A New NASA Leader Rises?

Synchronizing your daily activities to your circadian rhythm could help you improve your performance on a variety of cognitive tasks − and even influence diagnosis of cognitive disorders.

What’s your chronotype? Knowing whether you’re a night owl or an early bird could help you do better on tests and avoid scams

The Nordic countries are no strangers to the long, dark winter.  Despite little to no daylight — plus months of frigid temperatures — people who live in northern Europe and above the Arctic Circle have learned how to cope mentally and physically with the annual onset of the winter blues, which can begin as early as October and last into April for some.  The winter solstice will occur Dec. 21, marking the shortest day and longest night of the year in the Northern Hemisphere.

Nordic people know how to beat the winter blues. Here's how to find light in the darkest months

Spiritual leaders’ own pain often goes unnoticed as they tend to their community’s challenges.

‘I love this work, but it’s killing me’: The unique toll of being a spiritual leader today

The nascent LGBTQ+ rights movement and the Christian right each strongly shaped the early years of HIV/AIDS, a historian explains.

How HIV/AIDS got its name − the words Americans used for the crisis were steeped in science, stigma and religious language

The following is the transcript of the interview with former FDA commissioner Scott Gottlieb, who now serves on the boards of Pfizer and United Healthcare, that aired on "Face the Nation with Margaret Brennan" on Dec. 7, 2025.

Transcript: Scott Gottlieb on "Face the Nation with Margaret Brennan," Dec. 7, 2025

The outbreak blamed on "gym exposure" is relatively small, but it has helped push cases tied to the Legionella bacteria to a 10-year high in Florida.

Gym tied to outbreak of obscure disease that spreads through mist

The CDC's Advisory Committee on Immunization Practices, with members appointed by RFK Jr., voted to change longstanding recommendations on the hepatitis B vaccine.

New CDC recommendation postpones hepatitis B vaccine for newborns

As it is now, the transplant system treats kidneys from all Black donors as if they are at higher risk for failing, even though only some are.

Kidneys from Black donors are more likely to be thrown away − a bioethicist explains why

Dec 6 () - Regeneron said on Saturday its experimental cancer combination therapy was effective and showed disappearance of the disease in previously untreated patients with ​a type of blood cancer in the first part of a late-stage ‌trial. The trial, which enrolled 22 patients, studied safety and preliminary efficacy of the company's therapy, odronextamab, in combination ‌with chemotherapy in patients with Diffuse Large B-Cell Lymphoma or DLBCL.

Regeneron's experimental therapy combo effective in untreated cancer patients

Dec 5 (Reuters) - Vaccine makers expressed concern on Friday's decision by a U. advisory panel to scrap its long-standing recommendation that all infants ​receive a hepatitis B vaccine at birth, a shift that public health experts fear will ‌undermine decades of public health advances.

Vaccine makers raise concerns over US panel's shift away from hepatitis B shots for newborns

The health department told a state official the outbreak may be linked to a gym.

Health officials report 14 Legionnaires' disease cases in Florida, gym connection suspected

Hospitals for decades have provided babies their first hepatitis B vaccine. Now doctors' offices might administer the shot.

Will your baby get a hep B vaccine? What RFK panel's ruling means.

Infants will no longer receive hepatitis B vaccine at birth, CDC announces

The decision undoes a highly effective 34-year prevention strategy that has nearly eliminated early childhood hepatitis B infections in the U.S.

Vaccine committee votes to scrap universal hepatitis B shots for newborns despite outcry from children’s health experts

The committee called for "individual decision-making."

CDC vaccine panel votes to remove universal hepatitis B birth dose recommendation

"The hepatitis B vaccine is safe and effective," said U.S. Senator Bill Cassidy of Louisiana, a Republican and a physician. "This makes America sicker."

RFK Jr.'s handpicked vaccine panel just voted to stop recommending hepatitis B shots for all newborns. Why experts object.

The CDC's vaccine advisory panel meets Thursday and Friday to discuss recommendations for the hepatitis B vaccine and the schedule of childhood shots.

CDC's upcoming vote on hepatitis B vaccine could impact childhood immunization

Dec 4 (Reuters) - Vaccine advisers to U. were expected to vote on Thursday on whether to scrap a broad recommendation for the hepatitis B vaccine for children, a move that would leave the choice to parents in most cases.

Explainer-Why are hepatitis B vaccines given to newborns?

The CDC’s vaccine advisory panel once again delayed an expected vote on hepatitis B vaccines, after a chaotic meeting rife with misinformation.

CDC advisory panel delays vote on hepatitis B vaccines after unruly meeting

ATLANTA - Federal vaccine advisers selected by Health Secretary Robert F. Kennedy Jr. delayed until Friday a vote to lift a long-standing recommendation for all newborns to get the hepatitis B vaccine in what would be the most sweeping revision to the childhood vaccine schedule under Kennedy. The advisers heard presentations in the morning - including from two prominent vaccine critics recently hired by the Centers for Disease Control and Prevention - casting doubt on the safety and necessity of

CDC vaccine panel delays vote to stop recommending hepatitis B shot at birth

A single HPV vaccination appears just as effective as two doses at preventing the viral infection that causes cervical cancer, researchers reported Wednesday.  HPV, or human papillomavirus, is very common and spread through sex.  Most HPV infections clear up on their own but some linger, causing cancers that appear years later, including cervical cancer in women and rarer cancers in both women and men.

A single shot of HPV vaccine may be enough to fight cervical cancer, study finds

A federal vaccine advisory committee this week is expected to discuss whether newborns should still get the hepatitis B vaccine — the first shot found to prevent cancer.  Federal health recommendations now suggest that all babies be vaccinated against the liver infection in their first day of life, but U.S. Health Secretary Robert F. Kennedy Jr.’s committee on Thursday is expected to change that — contradicting previous public health advice.  It's not clear exactly what the committee is consider

What to know about the hepatitis B shot — and why Trump officials are targeting it

There is a recall for more than 260,000 cases of shredded cheese sold in 31 states and Puerto Rico because of the potential for metal fragment contamination, according to the U.S. Food and Drug Administration.  The FDA said that the various shredded cheeses were recalled by Great Lakes Cheese Co. The cheese products are sold under private store-brand labels at several retailers, including Target, Walmart and Aldi.  The recall includes various cheeses such as mozzarella, Italian style, pizza styl

Shredded cheese sold in dozens of states recalled due to potential for metal fragment contamination

The agency’s plan to change the well-established process for safety testing vaccines is not realistic.

FDA claims on COVID-19 vaccine safety are unsupported by reliable data – and could severely hinder vaccine access

SAN DIEGO Dec 2 (Reuters) - Novo Nordisk in 2020 launched pivotal trials of its GLP-1 drug semaglutide in Alzheimer's patients based on studies ​in humans, animals and real-world findings, a top company executive said on Tuesday, acknowledging ‌criticism that Novo's studies had design flaws. Although the trials failed to show statistically significant slowing of cognitive decline in patients given the drug,‌ "we still think it was the right decision.

Novo Nordisk justifies reasoning behind failed GLP-1 Alzheimer's trials

Federal vaccine advisers selected by Health Secretary Robert F. Kennedy Jr. are planning to vote on ending the practice of vaccinating all newborns for hepatitis B and to examine whether shots on the childhood immunization schedule are behind the rise of allergies and autoimmune disorders, the newly appointed chair of the group told The Washington Post. Kirk Milhoan, a pediatric cardiologist and critic of coronavirus vaccination who recently took over as chair of the influential vaccine panel, s

RFK Jr.’s vaccine advisers plan biggest change yet to childhood schedule

Coulier shared that he was cancer-free back in March.

Dave Coulier shares new cancer diagnosis 1 year after revealing previous diagnosis

Those driven by both heart and mind help the most people, even far beyond their own circle.

Health

What’s your chronotype? Knowing whether you’re a night owl or an early bird could help you do better on tests and avoid scams

Nordic people know how to beat the winter blues. Here's how to find light in the darkest months

‘I love this work, but it’s killing me’: The unique toll of being a spiritual leader today

How HIV/AIDS got its name − the words Americans used for the crisis were steeped in science, stigma and religious language

Transcript: Scott Gottlieb on "Face the Nation with Margaret Brennan," Dec. 7, 2025

What’s your chronotype? Knowing whether you’re a night owl or an early bird could help you do better on tests and avoid scams

Gym tied to outbreak of obscure disease that spreads through mist

New CDC recommendation postpones hepatitis B vaccine for newborns

Kidneys from Black donors are more likely to be thrown away − a bioethicist explains why

Regeneron's experimental therapy combo effective in untreated cancer patients

Vaccine makers raise concerns over US panel's shift away from hepatitis B shots for newborns

Health officials report 14 Legionnaires' disease cases in Florida, gym connection suspected

Will your baby get a hep B vaccine? What RFK panel's ruling means.

Infants will no longer receive hepatitis B vaccine at birth, CDC announces

Vaccine committee votes to scrap universal hepatitis B shots for newborns despite outcry from children’s health experts

CDC vaccine panel votes to remove universal hepatitis B birth dose recommendation

RFK Jr.'s handpicked vaccine panel just voted to stop recommending hepatitis B shots for all newborns. Why experts object.

CDC's upcoming vote on hepatitis B vaccine could impact childhood immunization

Explainer-Why are hepatitis B vaccines given to newborns?

CDC advisory panel delays vote on hepatitis B vaccines after unruly meeting

CDC vaccine panel delays vote to stop recommending hepatitis B shot at birth

A single shot of HPV vaccine may be enough to fight cervical cancer, study finds

What to know about the hepatitis B shot — and why Trump officials are targeting it

Shredded cheese sold in dozens of states recalled due to potential for metal fragment contamination

FDA claims on COVID-19 vaccine safety are unsupported by reliable data – and could severely hinder vaccine access

A single shot of HPV vaccine may be enough to fight cervical cancer, study finds

Novo Nordisk justifies reasoning behind failed GLP-1 Alzheimer's trials

RFK Jr.’s vaccine advisers plan biggest change yet to childhood schedule

Dave Coulier shares new cancer diagnosis 1 year after revealing previous diagnosis

Empathy and reasoning aren’t rivals – new research shows they work together to drive people to help more