Apollo 13's Intense Comms Blackout
A damaged Apollo 13 was about to re-enter Earth’s atmosphere amid a communications blackout. It would become the longest re-entry blackout in the history of the space program.

A damaged Apollo 13 was about to re-enter Earth’s atmosphere amid a communications blackout. It would become the longest re-entry blackout in the history of the space program.
Gibbons are incredible tree swingers, thanks to their long forearms, mobile joints and wrists that enhance fluid movement.
‘Big Bertha’ was one of the moon rocks brought back by the Apollo 14 crew for geological analysis. What it revealed stunned scientists.
Borneo’s rainy season has begun, and overnight, the local stream has become flooded. It doesn’t bother the young orangutans at the rehabilitation center – it’s just another opportunity to play.
To prepare him for landing the lunar module, Neil Armstrong practiced on a training vehicle, right here on Earth. It was designed to replicate flying within a gravitational pull that was 1/6 that of Earth.
As the only albino orangutan in Borneo, Alba the orangutan stands out among her peers in jungle school. She’s confident, capable, and firmly on schedule for a return to the wild.
It’s the beak that lends the attire of the medieval plague doctor its surreal quality, but it wasn’t there just to scare.
The AVE 103 is a powerful and speedy train between Madrid and Zaragoza, with a top speed of 217 mph – remarkable for a train that operates with no locomotive.
Raccoon dogs are the only member of the canine family that hibernate for winter. But in order to do this, they need to find enough food – and what they can’t scavenge, they steal.
Do you believe in witches? For the good people of Long Compton, it’s part of a longstanding tradition – one that, as recently as 1875, cost a woman named Ann Tennant her life.
Most canines, including these adorable wolf pups, are social animals with brains that have evolved for that purpose. This is why dogs are, on the whole, smarter than some solitary animals.
After they hatch, young rock pythons have just a few weeks to leave their nest. After that, they must wait to shed their skin before pursuing their first kill.
Did you know that some of the technologies we take for granted in our kitchens were actually developed by NASA? Here are five of the best, from water filters to freeze-dried food.
Saluki are a breed of desert dog famed for their speed. In the old days, Bedouins relied on them to hunt for gazelle – today, they are more likely to race for sport.
The Horse Whisperer, shot in Montana and starring Robert Redford, tells the story of a troubled family, a troubled horse, and the horse whisperer who brings them together.
Tren Crucero trains rely on sand to go up and down steep inclines: on the way up, sand helps provide the wheels with traction on the steel tracks, while during a descent, it aids the electric braking system.
Carmine bee-eaters use their long slender bill to pluck bees out of the air. Then, to neutralize their dangerous sting, they’ll smash the bee against the ground, several times.
If you’re looking for the ideal vantage point to the stunning viaducts and landscapes of the Tongariro National Park in New Zealand, you have only have one option: the miraculous North Island Main Trunk Line.
The dark patches on a giraffe’s skin have more blood vessels than the light skin. This can help heat dissipate, allowing them to stay cool.
The crew of Apollo 11 had made history by landing on the moon and coming back to Earth in one piece. But before the celebrations could begin, they would have to spend some time in quarantine.
Who or what killed this yearling lion? The range of possibilities run from a run-in with a porcupine to a fatal encounter with another adult lion – or was there another explanation?
It’s 1941 and the Nazis are in full control of the British island of Alderney. They begin to construct fortifications to protect their grip on the Channel Islands – often with slave labor.
A new male has picked the wrong time to join a local troop of vervet monkeys. He’s hoping to be accepted within their ranks – but it’s up to the alpha to make the final call.
A group of common murre chicks on Tyuleny Island, each around three weeks old, must navigate a dangerous obstacle to reach the sea: a beach packed with hostile fur seals, each one at least 40 times heavier than they are.
The USS Vinson is one of the most advanced and sophisticated aircraft carriers around. Yet some of its key functions are powered by a 300-year old technology: steam.
Leadership challenges in baboon troops are between the alpha male and a rival outsider. But tragically, some of the younger troop members can end up as collateral damage.
It’s May 1940, and high above the skies of Dunkirk, a squadron of Spitfires is desperately trying to hold off as many German Messerschmitt as they can. The lives of 300,000 British troops depend on it.
It may sound like an auspicious title; but the ‘groom of the stool’ was anything but. Simply put, it was a role that entailed monitoring and assisting with Henry VIII’s bowel movements.
Just a few miles from Ben Nevis mountain is the start of one of the most breathtaking train journeys in the world – so spectacular, in fact, that it was adapted by the Harry Potter movies as the Hogwarts Express.
We have this image of Queen Victoria as a highly proper, disciplined monarch. But the Queen was also someone who liked to get high: from opium tinctures to chewing gum laced with cocaine.