The late planetary scientist, astronomer, author and science communicator would have been 90 today.
The zoo, situated in England, has hailed the birth of one of the rarest animals on Earth.
Where great white sharks give birth has long remained one of the most enduring mysteries in shark science.
Known as Cassius, this gargantuan reptile was captured back in 1984 and has lived in a crocodile park ever since.
Bobi the Rafeiro do Alentejo has been defying the odds for years and now he's celebrated his 31st birthday.
The septuagenarian and her 75-year-old husband have hailed the birth of their first child.
A friendly Bigfoot was met with screams of terror when it showed up to celebrate a child's birthday recently.
The aged reptile, who currently lives in Serbia's Belgrade Zoo, is thought to be the oldest alligator on Earth.
A new study has shown that the asteroid that wiped out the dinosaurs also gave birth to the Amazon rainforest.
The world's largest shark was over two meters long at birth thanks to its penchant for eating its siblings.
Video footage of someone's birthday party celebrations features an anomalous extra in the background.
The Hubble Space Telescope is often regarded to be one of the most important scientific tools ever built.
Scientists have spotted an explosion five times greater than anything seen since the birth of the universe.
A new study has identified new types of transient muscles in unborn babies that disappear before birth.
Erramatti Mangayamma has become the world's oldest mother after giving birth at the tender age of 74.
Researchers were surprised to discover that a fish nick-named 'Mary' had been carrying fertilized eggs.
Mumbai resident Raphael Samuel disapproves of the fact that his parents didn't ask his permission beforehand.
Today marks the 20th birthday of one of mankind's greatest achievements - the International Space Station.
Scientists have been studying a meteorite that dates back to a time before the birth of our solar system.
The iconic rover, which landed on Mars six years ago, has celebrated with a self-congratulating Tweet.