1. Stephen Hawking: 'There are no black holes'

Notion of an 'event horizon', from which nothing can escape, is incompatible with quantum theory, physicist claims.

24 January 2014

2. Video: Fish leaps to catch birds on the wing

Tigerfish swallows swallows after grabbing them out of the air over African lake.

9 January 2014  

3. Nature promotes read-only sharing by subscribers  

Publisher permits subscribers and media to share read-only versions of its papers.

2 December 2014

4. Acid bath offers easy path to stem cells

Just squeezing or bathing cells in acidic conditions can readily reprogram them into an embryonic state.

29 January 2014

5. Publishers withdraw more than 120 gibberish papers

Conference proceedings removed from subscription databases after scientist reveals that they were computer-generated.

24 February 2014

6. Japanese woman is first recipient of next-generation stem cells

Surgeons implanted retinal tissue created after reverting the patient's own cells to 'pluripotent' state.

12 September 2014  

7. Acid-bath stem-cell study under investigation  

Japanese research institute launches inquiry after allegations of irregularities in blockbuster papers.

17 February 2014

8. Graphene conducts electricity ten times better than expected

Carbon layers grown on silicon carbide conduct electricity even better than theory predicted.

6 February 2014

9. Physicists explain 'gravity-defying' chain trick

Leaping beads get a push from the pot.

15 February 2014

10. WHO warns against 'post-antibiotic' era

Agency recommends global system to monitor spread of resistant microbes.

30 April 2014