One story that delighted millions throughout the year was the successful operation of the James Webb Space Telescope, following its launch at the end of 2021. The first images beamed down in July offered jaw-dropping views of the cosmos. After that, JWST went from strength to strength, whether that be taking pictures of planets in the solar system and further afield, or finding the oldest and most distant galaxies in the known universe.
Credits: NASA, ESA, CSA, and STScl
Webb’s cameras can look deep into space and far into the past. Webb has the capacity to look 13.6 billion light years distant—which will be the farthest we’ve ever seen into space. This image of the galactic cluster known as SMACS 0723 contains thousands of galaxies, some of which are as far away as 13.1 billion light years. (A single light year is just under 6 trillion miles.) Since light takes a long time to travel so far, we are seeing the galaxies not as they look today, but as they looked 13.1 billion years ago. The bluer galaxies are more mature ones, containing many stars and little dust. The redder galaxies contain more dust, from which stars are still forming.
Multi-country monkeypox outbreak in non-endemic countries
This story is from the January - February 2023 edition of Scientific India.
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This story is from the January - February 2023 edition of Scientific India.
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