Close encounters of the stellar kind
A star flashed past our solar system about 70,000 years ago. Did our ancestors even notice it? P Rajendran About 70,000 years ago two stars in a free spin careened…
Quake sensors can’t see water
Researchers thought they could detect water with a seismograph, but there was no link between how much there was in a sample and how fast seismic waves went through it…
‘A manifestation of amazing willpower’
Cosmologist and colleague Martin Rees looks back at the life of Stephen Hawking – one of spectacular success against all odds Martin Rees, University of Cambridge Soon after I enrolled…
A star bursts back into life
A slowly spinning dead star sucks up enough matter from its partner to re-ignite its long-extinguished fire A Truly Curious correspondent A turbid, swollen red giant star has been seen…
Deep thought and cold noses
Non-obtrusive thermal cameras help researchers confirm a significant link between the two Facial temperatures, which can be measured with a thermal camera, and the diameter of the pupil of the…