The Focus forum is now closed.
We're sad to make this announcement because, over the years, the forum has provided fascinating debate on science and technology, and we’ve often printed the discussions in the magazine.
We’d like to thank everyone who’s joined in and made it such interesting reading for fellow forum members and all of us who work on the magazine.
Graham Southorn, BBC Focus magazine
It is currently May 4th, '15, 18:03
With a revolutionary new therapy letting a man take his first steps after being paralysed and the deadly Ebola outbreak in West Africa, it has been a year of incredible highs and devastating lows.
It has seen hints that HIV is getting milder as well as new vaginas and old wombs being transplanted for the first time.
Here's a round up of the year in medical science.
Image Credit: ESA
From landing on a comet to the discovery of the world's biggest dinosaur, it was an eventful year in science and environment news. Here's a selection of 2014's highlights - and you can see the year in pictures here.
A member of the Chaos Computer Club (CCC) hacker network claims to have cloned a thumbprint of a German politician by using commercial software and images taken at a news conference.
Jan Krissler says he replicated the fingerprint of defence minister Ursula von der Leyen using pictures taken with a "standard photo camera".
Mr Krissler had no physical print from Ms von der Leyen.
Fingerprint biometrics are already considered insecure, experts say.
Mr Krissler, also ...
Image Credit: NASA / JPL-Caltech / GSFC
An "X-ray eye" designed to study distant galaxies and black holes has turned its attention to our own star and snapped a remarkable portrait.
Nasa's Nuclear Spectroscopic Telescope Array (Nustar), launched into orbit in 2012, views the universe in very high-energy X-rays.
Now on an extension to its original two-year mission, Nustar has already measured how fast black holes spin.
This image proves that it can gather ...
Image Credit: NASA
Astronauts on the International Space Station have used their 3-D printer to make a wrench from instructions sent up in an email.
It is the first time hardware has been "emailed" to space.
Nasa was responding to a request by ISS commander Barry Wilmore for a ratcheting socket wrench.
Previously, if astronauts requested a specific item they could have waited months for it to be flown up on one of the ...
Climbing onto the largest vessel the world has ever seen brings you into a realm where everything is on a bewilderingly vast scale and ambition knows no bounds.
Prelude is a staggering 488m long and the best way to grasp what this means is by comparison with something more familiar.
Four football pitches placed end-to-end would not quite match this vessel's length - and if you could lay the 301m of the Eiffel Tower ...
Image Credit: NASA / JPL-Caltech / MSSS
Nasa's Curiosity rover has detected methane on Mars - a gas that could hint at past or present life on the planet.
The robot sees very low-level amounts constantly in the background, but it also has monitored a number of short-lived spikes that are 10 times higher.
Methane on the Red Planet is intriguing because here on Earth, 95% of the gas comes from microbial organisms.
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