Dependence on GPS hampers your brain's ability to navigate and can even lead you astray. Don't leave home without a trusty paper map.

The dramatic celestial event will be visible from all seven continents, and it's a must-see for skywatchers; Venus won't trek across the solar disk again for 10

Photographing the historic Venus transit of the sun is special enough on its own, but one space photographer managed to get NASA's Hubble Space Telescope in the

A new study has found structural brain differences that may account for callous-unemotional traits in boys.

Research contradicts age-old advice about rest and recovery after a concussion.

Study finds that only 17 percent of children create deep imaginary worlds but they also exhibit higher levels of creativity.

A new book shows us how our faces reveal our true selves.

The rare dual-sex butterfly astounded curators at the Natural History Museum in London.

Guys may now have another reason to get off the couch: Watching TV has been linked to lower sperm counts.

ncreasing fathers' support during pregnancy may lower rates of premature babies and babies born too small.

Sex. Many (but not all) animals do it.

Cohabitating doesn't provide the same health benefits for gay couples that marriage does for straights.

Here are the key facts about the cases and what's behind them.

Thanks in part to shows like 'Modern Family,' a majority of Americans are now in favor of same-sex marriage.

A federal judge has ordered the Food and Drug Administration to make the morning-after pill available to teens without a prescription.

But rolling in the hay resumes as doctors treat her allergy to semen.

The same-sex marriage rulings by the Supreme Court are but the most recent in a long history of cases that reshaped the family structure.

Male primates may have become monogamous to protect their offspring from being killed by rival males.

Keeping sperm from being ejaculated may provide the key to creating a birth control drug for men.

The popularity of weird beards and mustaches among young men living in Brooklyn, N.Y., may be more than just a hipster fad.

Certain female spiders are infamous for eating their partners after sex, but some actually pounce on suitors, fangs first, before mating.

Male chimpanzees that wage a campaign of sustained aggression against females sire more offspring than their less violent counterparts.

If you're looking for a boost in happiness, having more sex may not be your best bet.

Two chubby marsupial species that would literally die for sex (albeit 14-hour sessions) have been discovered in Australia.

Rise of the robosexuals: What will it mean for our human relationships?

A brightly-colored fungus found only on Hawaiian lava flows might be the most powerful aphrodisiac ever discovered.

From the researcher who discovered peacock spiders, a new Australian spider species engages in a complex game to determine if a potential mate is a virgin.

A newly discovered mechanism in the throats of mice works like a supersonic jet engine.

Moorland hawker dragonfly demonstrates the lengths women must go to avoid the opposite sex.

For many wild creatures the line between male and female is decidedly blurry.

The latest black hole discovery opens a whole new universe of not-so-big black holes.

A star from a distant galaxy produced the most intense X-ray blast ever.

The demand for gasoline in the United States reached a new high in March with an average of 9.3 million barrels of gasoline being produced per day.

BP is coming under criticism for buying 'gulf oil spill' search advertising on Google. Will the company's attempt to redirect online traffic backfire?

Alaskan journalist Charles Wohlforth, author of 'The Fate of Nature,' tells MSNBC about the oil spill's likely long-term effects and what could exacerbate them.

Oilman-turned-solar entrepreneur Jeremy Leggett says there's only one shot to plug the well, and getting it wrong comes with a heavy price.

The Republican presidential candidate from Minnesota thinks she has the magic touch for lowering prices at the pump.

A new proposal would expand offshore drilling in U.S. waters, but it's drawing fire from supporters as well as critics of the oil and gas industry.

Thanks to our oil addiction, such a world would include rolling blackouts, minimal transportation, dwindling food supplies and possibly war.

Amid an uproar from some conservatives, the Obama administration will delay an industry-funded effort to promote real Christmas trees over plastic replicas.

The USDA has updated its planting-zones map for the first time in 22 years, reflecting a warmer U.S. where many southern crops are expanding north.

In a recently released video, the first lady talks up the healthy new choices that kids will see in their school lunches this year

Looking for plant hardiness zones? This useful map shows which plants you can grow in your garden based on temperatures in your area.

The USDA wants to set nutritional standards for snacks sold in vending machines, "a la carte" lunch lines and school stores.

A request for a USDA Process Verified label for its non-GMO product has raised questions. Here are some answers.

A petition to to the USDA to allow food stamps to be used online could make affordable, healthy foods easily available to people in food deserts.

It may take less of an increase in global temperatures to melt the ice sheet covering Greenland than thought, new research suggests.

As the old ice of Earth melts, photographers have captured its decline. Here are eight stunning before-and-after images detailing ice melts across our planet.

Wild geoengineering schemes may aim to reverse global warming by reflecting sunlight into space or storing excess carbon dioxide, but they won't spare humanity

The mission aims to track the potential impact of methane and carbon dioxide emissions on climate change.