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Cryptic crossword #72: Clean antimony-coated tungsten article (4)

9 December 2021

Challenge your brain by solving New Scientist's weekly crosswords on your mobile, tablet or desktop

The San Rafael waterfall, the biggest falls in Ecuador, located on the boundary of the Amazon with The Andes. San Rafael, Napo, Ecuador. February 2016

The Amazon is turning into savannah – we have 5 years to save it

8 December 2021

We have been hearing warnings about the destruction of the Amazon rainforest for decades, but experts say a catastrophic tipping point is now just over the horizon. Are they right? And if so, what can we do to pull things back?

Puzzle #143: Help figure out Spot's final resting place

8 December 2021

Can you solve this week's puzzle "X marks the Spot"? Plus the answer to Puzzle #142

James Webb Space Telescope Mirrors Undergoing Cryogenic Testing The flight mirrors for the James Webb Space Telescope undergo cryogenic testing at NASA Marshall. Credit: Ball Aerospace

The James Webb Space Telescope is expensive, but it should be worth it

8 December 2021

It may be extremely late and over-budget, but the James Webb Space Telescope promises to show us the moment the first stars lit up and solve cosmic mysteries

How to make a beautiful gingerbread house that won't fall down

8 December 2021

It takes a special kind of gingerbread to create architecture, so make sure your building materials are up to the challenge, says Sam Wong

Thousands of people march though Central London, UK, on Earth Day on 22 April 2017 to protest against what they see as a threat to experts, evidence and investment in science. Protesters assembled at the Science Museum and marched to Parliament Square. The march, a worldwide event, supports science and evidence-based research and was organized in opposition to Donald Trump's environmental and energy policies. (Photo by Jay Shaw Baker/NurPhoto via Getty Images)

We’ll never understand the universe while we’re drowning in admin

8 December 2021

Funding cuts are undermining the scientific enterprise, impoverishing our attempts to discover the secrets of nature and share them widely, says Chanda Prescod-Weinstein

How the James Webb telescope will rewrite the story of the universe

8 December 2021

The most anticipated space telescope ever is about to launch. It will give us a clear picture of the first stars and reveal the atmospheres of exoplanets too – if it unfolds without a hitch

HEXDC6 Cosmic rays.Artwork of high-energy particles radiation from star in deep space (cosmic rays) impacting molecules atoms in Earth's atmosphere.These primary impacts cause secondary cascade of subatomic particles.Detection analysis of these particles,which include protons,neutrons,light nuclei,neutrinos,pions,and muons,can reveal source of cosmic rays.These sources may include gamma ray bursts (GRBs),active galactic nuclei,supernovae quasars.Such research is carried out atmospheric balloons,or advanced detectors built underground or underwater,to shield them from other radiation.

US Navy is developing GPS that uses cosmic rays to navigate the Arctic

7 December 2021

At higher latitudes, traditional GPS navigation is not reliable, but muons produced when cosmic rays hit Earth’s atmosphere could be used to navigate in the Arctic, as well as underground or in the water