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Research shows most patients can read extra lines on eye test charts after twice-daily treatment ...

The long-running series in which readers answer other readers' questions on subjects ranging from trivial flights of fancy to profound scientific and philosophical concepts ...

Laura Marie is one of six research volunteers preparing to spend 378 days inside Nasa's Mars Dune Alpha in Houston ...

My novel explores the consequences of extreme longevity. Meanwhile, Putin and Xi are pondering immortality in real life, says writer-strategist Hanna Thomas Uose ...

Need something brilliant to read this weekend? Here are six of our favourite pieces from the past seven days ...

Kennedy is unfit to be our nation's leading public health official because he rejects the fundamental principles of modern science ...

Sanofi's market access chief urges ministers to come up with a roadmap to raise spending on new treatments ...

Judges have announced the winning images from the Royal Observatory Greenwich's annual competition. The photographs will be exhibited at the National Maritime Museum in London from Friday ...

DNA analysis of endemic specimens in museums finds 79% of ant populations in Pacific archipelago are shrinking ...

Court declined preliminary injunction in case brought by scientists seeking to halt purge of more than 1,600 grants ...