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The $10-billion Webb telescope is the most powerful such instrument ever launched. If all goes well, it will see back in time to very near the beginnings of the universe.

Online learners will need to be ­intrinsically motivated with equal parts ­willpower, personal initiative and ­perseverance, along with the skills needed to adapt to the new situation, Geoff Johnson says

For the longest time, it seemed few people knew anyone directly affected by COVID-19, and if you were sick, there was a fear other people would find out.

Promising news for diabetics: An early-stage clinical trial suggests stem cells that have been implanted in humans can transform into ­pancreas cells secrete insulin in response to eating.

We need to re-establish a reverence for nature, to see it not simply as a set of resources put there for our benefit and to make money from, but as a sacred trust that we must pass on in good condition to future generations, writes Trevor Hancock.

Holding back on bad language to describe miserable new-computer experience