Men who take Viagra are experiencing blue-tinted vision for days, scientists warn
Science and Technology
Stunning ‘rainbow cloud’ discovered that was created by battle between two stars
‘Excessive breast movement’ can cost women an extra mile when running, study finds
‘Revolutionary’ fingerprint test can identify cocaine users in less than two minutes
World’s biggest iceberg that’s 4 times the size of London is about to enter open ocean
Cancer vaccine could save thousands a year as scientists find triggers of disease
Super Snow Moon will appear this weekend – what it is and how you can see it
Woman grows ‘eyelash-like’ hairs in her mouth due to rare condition
Teenage girl suffers ‘life-threatening’ throat swelling ‘linked to vaping’
NASA astronaut snaps stunning photo of China from ISS as she prepares to return to Earth
