When you're out before sunrise or after sunset, take extra precautions to stay safe when exercising outdoors at night.
When it's over 100 degrees outside, is it finally hot enough to fry an egg on the sidewalk?
Behold some amazing views of the sun as you've never seen it before before - with tendrils and flares, storms and explosions.
A statement made by Neil deGrasse Tyson, released after NASA debuted a new image of Earth on the 46th anniversary of the 1969 moon walk.
When it comes to heat exhaustion and heat stroke, what signs or symptoms should you look for, and how do you prevent them?
There is no longer any doubt: We are entering a mass extinction that threatens humanity's existence.
Watching a dust storm (or haboob) blow in, you can imagine it will leave a swath of nothingness in its wake. Fortunately, it's not like that at all.
What is the best way to get out of a car that's sinking in or underwater after a flood? We have some tips that might help.
Unfortunately, you can't just slap on a little sunscreen and expect to be safe from sunburn. Here's what you need to know.
While many of us will look for stylish sunglasses, making sure they will also protect your eyes from damaging ultraviolet (UV) rays.
How does sunscreen work to keep us from getting sunburned and skin cancer? Here's a look inside the bottle.
Here's a look at the science that goes into determining a sunscreen's SPF - skin protection factor - and how to choose the best one for your needs.
A definitive geological timeline shows that a series of massive volcanic explosions 66 million years ago contributed to the extinction of the dinosaurs.
Kids and babies are a lot more susceptible to UV damage, meaning that sun protection is more important than we even realized.
Despite manmade paper snowflakes looking the same every year, scientists say the old saying is true: no two snowflakes are alike - if they're large enough.
It sounds like the stuff of sci-fi TV: the creation of a material that doesn't just redirect excess heat, but redirects that heat into space.
In this snowflake picture gallery, we have 50 amazing snowflake photos - each one different, each one carefully photographed through a macro lens.
Does your sunscreen have you covered? You're just wasting your money - and risking your skin's health - unless you're applying it the right way.
Hot weather can be fun for both people and pets, but because of the heat, you need to take precautions. Here's how to keep your pets safe in the summer.
On a day out by the pool or on the beach, should you use sunscreen for babies?