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David Waltham

David Waltham

Professor of Geophysics, Royal Holloway
After completing a PhD in signal processing I joined the oil industry for 2 years before becoming a lecturer in Geophysics in Royal Holloway's Department of Earth Sciences where I became Head of Department. My research interests involve computer modelling of geological processes from the motion of a grain of sand up to the climatic influences of the solar system's architecture. My recent research has been focussed on the question "Is the Earth Special?" and has led to publication of "Lucky Planet", a popular science book on the subject.

Future of Coal Series

'Gold' hydrogen: natural deposits are turning up all over the world – but how useful is it in our move away from fossil fuels?

Jan 15, 2024 03:42 am UTC| Nature Business

Hydrogen will play a role in weaning us off fossil fuels. It can be used to power trains, planes and HGVs, as well as being a low-carbon alternative to coke in steelmaking and a way to warm our homes. But where will we...

How did the moon end up where it is?

Apr 27, 2019 06:09 am UTC| Insights & Views Science

Nearly 50 years since man first walked on the moon, the human race is once more pushing forward with attempts to land on the Earths satellite. This year alone, China has landed a robotic spacecraft on the far side of the...

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Economy

U.S.-India Trade Framework Signals Major Shift in Tariffs, Energy, and Supply Chains

The United States and India have taken a significant step toward a long-anticipated bilateral trade agreement by releasing an interim trade framework aimed at lowering tariffs, reshaping energy ties, and strengthening...

Dow Hits 50,000 as U.S. Stocks Stage Strong Rebound Amid AI Volatility

U.S. stocks surged on Friday, posting their strongest session since May 2025, as investors regained confidence following a turbulent week marked by sharp losses in technology shares and uncertainty around the artificial...

Gold and Silver Prices Rebound After Volatile Week Triggered by Fed Nomination

Gold and silver prices climbed on Friday, closing out an exceptionally volatile week in the precious metals market following a historic selloff. The turbulence was sparked by the nomination of former Federal Reserve...

RBI Holds Repo Rate at 5.25% as India’s Growth Outlook Strengthens After U.S. Trade Deal

The Reserve Bank of India (RBI) on Friday kept its key repo rate unchanged at 5.25%, a widely expected decision that reflects confidence in Indias strong economic growth and easing external pressures following a major...

Japan Economy Poised for Q4 2025 Growth as Investment and Consumption Hold Firm

Japans economy is widely expected to have returned to growth in the final quarter of 2025, supported by strong corporate investment and resilient consumer spending, according to a recent Reuters poll of economists. The...

Politics

Federal Judge Restores Funding for Gateway Rail Tunnel Project

A New York federal judge has ordered the Trump administration to release frozen federal funds for the $16 billion Gateway Project, a critical rail infrastructure initiative connecting New York and New Jersey. The ruling,...

Pentagon Ends Military Education Programs With Harvard University

The U.S. Department of Defense has announced it will terminate all professional military education programs connected to Harvard University, marking a significant shift in the Pentagons approach to academic partnerships....

Trump Signs “America First Arms Transfer Strategy” to Prioritize U.S. Weapons Sales

U.S. President Donald Trump has signed a new executive order reshaping how the United States prioritizes foreign military sales, marking a major shift in long-standing U.S. arms export policy. The order establishes the...

TrumpRx.gov Highlights GLP-1 Drug Discounts but Offers Limited Savings for Most Americans

President Donald Trump has launched a new prescription drug pricing website, TrumpRx.gov, aiming to showcase his administrations efforts to reduce drug costs in the United States. The website focuses heavily on negotiated...

U.S. to Begin Paying UN Dues as Financial Crisis Spurs Push for Reforms

The United States will make an initial payment toward the billions of dollars it owes the United Nations within weeks, according to comments made by U.S. Ambassador Mike Waltz in a recent interview with Reuters. The move...

Science

SpaceX Prioritizes Moon Mission Before Mars as Starship Development Accelerates

Elon Musks SpaceX is shifting its near-term space exploration strategy, choosing to prioritize a return to the Moon before pursuing missions to Mars, according to a recent Wall Street Journal report citing sources familiar...

NASA and SpaceX Target Crew-11 Undocking From ISS Amid Medical Concern

NASA has confirmed that the agency, in coordination with SpaceX, is targeting no earlier than 5 p.m. Eastern Time (2200 GMT) on Wednesday, January 14, for the undocking of the SpaceX Crew-11 mission from the International...

Neuralink Plans High-Volume Brain Implant Production and Fully Automated Surgery by 2026

Elon Musks brain-computer interface company Neuralink is preparing for a major expansion, announcing plans to begin high-volume production of its brain implant devices and transition to a fully automated surgical procedure...

Jared Isaacman Confirmed as NASA Administrator, Becomes 15th Leader of U.S. Space Agency

The U.S. Senate has officially confirmed billionaire private astronaut Jared Isaacman as the new NASA administrator, making him the 15th leader in the agencys history. The confirmation, which took place on Wednesday, marks...

Senate Sets December 8 Vote on Trump’s NASA Nominee Jared Isaacman

The U.S. Senate Commerce Committee announced it will vote on December 8 on President Donald Trumps renewed nomination of private astronaut and tech entrepreneur Jared Isaacman to lead NASA. Isaacman, known for his...

Technology

Nvidia CEO Jensen Huang Says AI Investment Boom Is Just Beginning as NVDA Shares Surge

Nvidia (NASDAQ: NVDA) CEO Jensen Huang reaffirmed his bullish stance on artificial intelligence, calling the massive capital expenditure flowing into AI infrastructure both appropriate and necessary as the industry...

Amazon Stock Rebounds After Earnings as $200B Capex Plan Sparks AI Spending Debate

Amazon.com (NASDAQ:AMZN) delivered a mixed but closely watched earnings report, beating Wall Street expectations on revenue while unveiling a massive long-term investment plan that unsettled investors. The e-commerce and...

Global PC Makers Eye Chinese Memory Chip Suppliers Amid Ongoing Supply Crunch

Major PC manufacturers including HP, Dell, Acer, and Asus are reportedly exploring the option of sourcing memory chips from Chinese semiconductor companies for the first time, as a prolonged global supply crunch continues...

OpenAI Expands Enterprise AI Strategy With Major Hiring Push Ahead of New Business Offering

OpenAI is significantly accelerating its enterprise AI strategy by hiring hundreds of new employees for its technical consulting division, according to a report by The Information, citing a person familiar with the...

SoftBank Shares Slide After Arm Earnings Miss Fuels Tech Stock Sell-Off

SoftBank Group Corp. (TYO:9984) shares tumbled sharply on Thursday, tracking a steep decline in Arm Holdings (NASDAQ:ARM) after the UK-based chip designer reported weaker-than-expected earnings for the December quarter....
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