A few incredible 'good news' science stories you may have missed:
1. Penguin population grows by millions
There are a lot more penguins on the planet than we previously thought – millions more.
The penguin population in East Antarctica has doubled to six million after researchers revised previous estimates.
2. Drug to treat male infertility breakthrough
Scientists worked out how to overcome a genetic deficiency in sperm which prevents fertilisation.
3. The ozone layer is 'repairing itself'
The hole in the Antarctic ozone layer is closing and will be 'healed' by 2050, scientists say.
It has shrunk by more than 1.7 million square miles since 2000.
4. Giant Panda no longer endangered
Panda populations have grown 17% in the wild since 2007 thanks to conservation efforts.
5. Common cold cure a step closer
Snotty noses and irritating coughs could soon be no more thanks to a potential cure for the common cold.
6. Organ transplant breakthrough
Human-pig embryos have been created by scientists in a breakthrough for organ transplants.
It could pave the way for doctors to grow an unlimited supply of organs for transplants.
7. Humpback whales taken off endangered species list
Most humpback whales are no longer considered endangered species after successful conservation efforts.
Nine of 14 population segments were removed from the list in 2016.
8. Brain implant helps quadriplegic man
Aparalysed man was able to move his fingers six years after breaking his neck thanks to a cybernetic implant in his brain.
The brain implant gives hope to millions of people who suffer from paralysis.
9. Malaria death rates drop
Malaria death rates have plunged by 60% since 2000, according to a joint World Health Organisation (WHO) - UNICEF report.
That translates into 6.2 million lives saved over the last 15 years thanks to efforts to control and eliminate the disease.
10. Physicist creates drip-free wine bottle
And finally … a physicist has invented the first ‘drip-free’ wine bottle.
An additional small groove at the top of the bottle means you will never again spill a precious drop of wine.