SpaceX

SpaceX scrubs Falcon 9 launch

A technical problem halted the countdown less than four minutes before ignition.

Wild pig numbers are growing in Va., and so is the threat

Wild pigs that have caused major ecological damage in Texas, Florida and Georgia now threaten Virginia.

A stand-up desk may give you both energy and pain

Standing for too long during the day can be a problem, just as sitting can be.

More Health and Science news

Obama pledges up to $5 billion to infectious-diseases fund

Obama pledges up to $5 billion to infectious-diseases fund

The money represents $1 billion more than the U.S. committed during the previous round of funding in 2010.

The 2013 wimpy hurricane season

The 2013 wimpy hurricane season

The last time there were only two hurricanes was 1982.

HealthCare.gov meets deadline for fixes, HHS says

HealthCare.gov meets deadline for fixes, HHS says

As many as 50,000 applicants will be able to use the site at the same time, according to the administration.

HealthCare.gov will meet deadline for fixes, officials say

HealthCare.gov will meet deadline for fixes, officials say

Officials say the federal health-care site’s capacity is up and errors are down, but there’s still work to do.

Venus, Jupiter will beam brightly this month

On Friday, Venus reaches “greatest illuminated extent,” according to the U.S. Naval Observatory.

What to know about buying individual health insurance

Answers to questions related to recent health-care news.

A rough passage for health-care navigators

A rough passage for health-care navigators

Launch of HealthCare.gov has been a trying time for groups recruited to help people sign up for coverage.

A mysterious illness is turning sea stars to goo

A mysterious illness is turning sea stars to goo

Once known as starfish, sea stars have had die-offs before. But this is bigger and worse than ever.

Multimedia

MOJAVE, CA - OCTOBER 23:  A man walks across the top of a hangar at Mojave Air and Space Port on October 23, 2013 in Mojave, Ca. (Photo by Ricky Carioti/The Washington Post)

Welcome to space country

Mojave, Calif., may be the next Silicon Valley of space travel.

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Other news

Calcium and Vitamin D supplement benefits are limited

calcium tablets

A study of post-menopausal women shows supplements have little effect on bone health and cancer risks.

Warming waters may be hurting the ocean food chain

HESciNews1126

Higher sea temperatures may be to blame for a dramatic decline in North Atlantic microscopic creatures.

Why humans loathe and love insects

A close up of the grasshopper, doe. Isolated on white.

Also: A new book challenges the common view of human evolution.

It’s not like Hollywood: The real signs of a heart attack

stethoscope and pen resting on a sheet of medical lab test results, with patient file and x-ray or mri film

Also: Randi Zuckerberg book gives advice on surviving digital life.

Retirement is about finding a mission

FILE-This Aug. 6, 2008 file photo shows Alice Waters, the grand dame of the 'slow food' movement, in her garden in Bolinas, Calif. Tens of thousands of people are expected to attend Slow Food Nation over Labor Day weekend in San Francisco, a Woodstock-like festival and symposium meant to underscore the connection between planet and plate. (AP Photo/Paul Sakuma,File)

Volunteering at a hospice ‘enlivens my heart and soul.’

COLUMNS

AnyBODY

Can’t fall asleep? Help may not be in the medicine cabinet.

HEanybody1126

There’s little research showing the effectiveness of over-the-counter sleep aids, even ‘natural’ ones.

Nausea: So common, yet such a mystery

Britain's Catherine, Duchess of Cambridge attends a garden party at Buckingham Palace in London May 22, 2013. REUTERS/John Stillwell/POOL (BRITAIN - Tags: ROYALS ENTERTAINMENT SOCIETY) - RTXZWT4

“A cold washcloth is about what we have” to ease discomfort. Looking for clues in our genes and brains.

Are clogs and comfort shoes necessarily good for your feet?

Close-up image of some leather shoes in a shop

The short answer: No. Clunky doesn’t mean better. Before buying, get to know your feet and gait.

How & Why/EcoLOGIC

Turkeys: Funny-looking and tasty, but can they fly?

Some can, but probably not the one you will be eating for Thanksgiving. How domestication impeded flight.

The environmental costs of a Thanksgiving meal

HEEcologic1112

Enjoy the turkey, but be aware that the vegetables do less damage to the planet than the bird does.

The genetic mutants that led to a Nobel

epa03900401 Handout image released 07 October 2013 by the University of California, Berkeley of professor Randy W. Schekman who shares the 2013 Nobel Prize in Physiology or Medicine with James E. Rothman and Thomas C. Sudhof for 'for their discoveries of machinery regulating vesicle traffic, a major transport system in our cells.'  EPA/UC BERKELEY / HANDOUT EDITORIAL USE ONLY, NO SALES

How Randy Schekman transformed a simple idea into the basis for a hepatitis vaccine.

Urban Jungle

Arriving juncos

Arriving  juncos

Males hang back while females and young birds migrate first.

Medical Mysteries

A wasting-away mystery

MedMysteries 1119

Why did a 14-year-old girl develop sudden weakness and apparent anorexia?

Dripping wet

Janet Ruddock Medical Mystery 1015

A woman couldn’t stop sweating, and the problem wasn’t hot flashes. What was going on?

Emergency surgery followed many missed chances to diagnose illness

HSCover0813

Until he nearly died, the reason for Kevin Songer’s weak muscles went undetected for more than 50 years.

Read more Medical Mysteries

Health, Science & Environment Videos

Kliff Notes: Will Obamacare cancel my plan?

Kliff Notes: Will Obamacare cancel my plan?

Wonkblog's Sarah Kliff explains why a lot of people's health insurance policies might get cancelled.
Kliff Notes: HealthCare.gov's 3 problems

Kliff Notes: HealthCare.gov's 3 problems

Wonkblog's Sarah Kliff walks through the three main problems bogging down the Affordable Care Act's online marketplace.
Kliff Notes: Obama's health care speech

Kliff Notes: Obama's health care speech

Wonkblog's Sarah Kliff shares her "Kliff Notes" for President Obama's remarks defending his signature health care law.
Obamacare Q&A: Are all marketplaces created equal?

Obamacare Q&A: Are all marketplaces created equal?

Wonkblog's Sarah Kliff explains why the Affordable Care Act's health insurance marketplaces are different from state to state.
Obamacare Q&A: Who doesn't have to enroll?

Obamacare Q&A: Who doesn't have to enroll?

Wonkblog's Sarah Kliff explains the exceptions to the Affordable Care Act's individual mandate.
Obamacare Q&A: What if I already have insurance?

Obamacare Q&A: What if I already have insurance?

Wonkblog's Sarah Kliff explains how insured people can use the Affordable Care Act's health insurance marketplaces.
Obamacare Q&A: Can anyone deny me coverage?

Obamacare Q&A: Can anyone deny me coverage?

Wonkblog's Sarah Kliff explains what changes for people with pre-existing conditions under the Affordable Care Act.
Obamacare Q&A: Will I go to jail?

Obamacare Q&A: Will I go to jail?

Wonkblog's Sarah Kliff explains what happens if you don't buy health insurance under the Affordable Care Act.
Obamacare explained, in 2 minutes

Obamacare explained, in 2 minutes

Wonkblog's Sarah Kliff breaks down the policy you need to understand about the Affordable Care Act, from politics to premiums.
Opera singer’s new lungs

Opera singer’s new lungs

Charity Sunshine Tilleman-Dick, a 29-year-old American soprano, has performed at the Kennedy Center, Lincoln Center, and around the world. A rare disease, idiopathic pulmonary hypertension, demanded she have two double-lung transplants. Despite all odds she continues to sing.