Jeff Tollefson

The Archive

Design could help to probe the ‘ignorosphere’, a layer of ultra-thin air that has largely escaped exploration by balloons, aircraft and satellites

August 12, 2025 | 08:00PM

These tiny flyers levitate on the Sun’s heat alone
US researchers were hopeful when Donald Trump appointed Michael Kratsios to a top science position, but many say he has contributed to the chaos

August 11, 2025 | 08:00PM

Trump’s chief science adviser faces a storm of criticism: what's next? Can he turn things around?
Report authors welcome ‘serious’ scientific rebuttals to report that some say misrepresents decades of climate science

August 06, 2025 | 08:00PM

Outrage over Trump team’s climate report spurs researchers to fight back
The system will save time spent on processing satellite data, researchers say — but they hope the tech firm will share more about how it works

July 30, 2025 | 08:00PM

Google AI model mines trillions of images to create maps of Earth ‘at any place and time’
Study reveals how the tech behemoth is using the motions sensors on phones to expand quake warnings to more countries

July 16, 2025 | 08:00PM

Google tapped billions of mobile phones to detect quakes worldwide — and send alerts
Efforts by leaders of the US national academies to adjust to the new political reality have spurred member concerns about capitulation and censorship

June 30, 2025 | 08:00PM

Turmoil at US science academy as Trump cuts force layoffs
Research across science and medicine will probably shrink at one of the world’s most elite universities amid a new political reality

June 25, 2025 | 08:00PM

Harvard vs Trump: what this epic battle means for science
Thousands have signed an open letter against the US president’s latest order, anxious about political interference in science and more

May 27, 2025 | 08:00PM

Trump’s call for ‘gold standard science’ has prompted an outcry: here’s why
E-mails reveal the stoppage at the US Environmental Protection Agency, which is encouraging workers to resign ahead of a reorganization

May 08, 2025 | 08:00PM

US environmental agency halts funding for its main science division
Huge reductions, if enacted, could have ‘catastrophic’ effects on US competitiveness and the scientific pipeline, critics say

May 01, 2025 | 08:00PM

Trump proposes unprecedented budget cuts to US science

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