Beyonc and rapper Jay welcomed their first child on 7 January - a little girl called Blue Ivy.
Their daughter's name was confirmed by the couple's close friend Gwyneth Paltrow, who tweeted:
"Welcome to the world Blue! We love you already."
The 30-year-old singer gave birth by Caesarean section at Lennox Hill hospital in New York, with Jay - real name Shawn Carter - by her side.
Scientists are appealing for more people to donate their brains for research after they die.
Life on Earth may have arrived from Mars on an asteroid, scientists have claimed.
Lunar mission scheduled at the end of 2017 could find out if beer can be brewed on the moon.
A bottle used to teach children how far litter can travel ended up on Scottish beach after 8,700-mile journey.
Confused Apple customers are finding coins in their MacBooks.
High levels of iron help prevent hearing loss, a study has claimed.
A software engineer has constructed a fingernail-sized engine made of paper and it totally works!
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