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Chris Impey

University Distinguished Professor of Astronomy, University of Arizona
Chris Impey is a University Distinguished Professor of Astronomy at the University of Arizona. He has over 180 refereed publications on observational cosmology, galaxies, and quasars, and his research has been supported by $20 million in NASA and NSF grants. He has won eleven teaching awards, and has taught three massive open online classes with over 180,000 enrolled. Impey is a past Vice President of the American Astronomical Society and he has been an NSF Distinguished Teaching Scholar, Carnegie Council’s Arizona Professor of the Year, and most recently, a Howard Hughes Medical Institute Professor. He’s written over 70 popular articles on cosmology and astrobiology, two introductory textbooks, a novel called Shadow World, and eight popular science books: The Living Cosmos, How It Ends, Talking About Life, How It Began, Dreams of Other Worlds, Humble Before the Void, Beyond: The Future of Space Travel, and Einstein’s Monsters: The Life and Times of Black Holes.

The Mars Sample Return mission has a shaky future, and NASA is calling on private companies for backup

Apr 26, 2024 01:33 am UTC| Insights & Views Science

A critical NASA mission in the search for life beyond Earth, Mars Sample Return, is in trouble. Its budget has ballooned from US$5 billion to over $11 billion, and the sample return date may slip from the end of this...

Space Science Series

Exploding stars are rare but emit torrents of radiation − if one happened close enough to Earth, it could threaten life on the planet

Apr 01, 2024 11:05 am UTC| Science

Stars like the Sun are remarkably constant. They vary in brightness by only 0.1% over years and decades, thanks to the fusion of hydrogen into helium that powers them. This process will keep the Sun shining steadily for...

Orbital resonance − the striking gravitational dance done by planets with aligning orbits

Feb 05, 2024 07:17 am UTC| Science

Planets orbit their parent stars while separated by enormous distances in our solar system, planets are like grains of sand in a region the size of a football field. The time that planets take to orbit their suns have no...

Space Science Series

Why isn't there any sound in space? An astronomer explains why in space no one can hear you scream

Dec 05, 2023 05:40 am UTC| Science

In space, no one can hear you scream. You may have heard this saying. Its the tagline from the famous 1979 science fiction movie Alien. Its a scary thought, but is it true? The simple answer is yes, no one can hear you...

Space Science Series

NASA report finds no evidence that UFOs are extraterrestrial

Sep 18, 2023 05:52 am UTC| Science

NASAs independent study team released its highly anticipated report on UFOs on Sept. 14, 2023. In part to move beyond the stigma often attached to UFOs, where military pilots fear ridicule or job sanctions if they...

Space junk in Earth orbit and on the Moon will increase with future missions − but nobody's in charge of cleaning it up

Sep 01, 2023 01:38 am UTC| Science

Theres a lot of trash on the Moon right now including nearly 100 bags of human waste and with countries around the globe traveling to the Moon, theres going to be a lot more, both on the lunar surface and in Earths...

Economy

Mexico-EU Free Trade Deal Signals Strategic Shift Away From U.S. Dependence

Mexico and the European Union officially signed a long-delayed free trade agreement aimed at strengthening economic ties and reducing reliance on the United States amid ongoing tariff tensions linked to U.S. President...

World Bank Emergency Funding Demand Surges as 27 Countries Seek Crisis Support Amid Iran Conflict

Twenty-seven countries have moved to unlock emergency financing from existing World Bank programs following the economic shock caused by the ongoing Iran conflict, according to an internal document reviewed by Reuters. The...

Trump-China Summit Yields Limited Progress on Trade and Tech Cooperation

US President Donald Trumps May 1315 visit to China ended with both nations agreeing to strengthen communication and pursue a constructive strategic stability framework, signaling cautious progress in US-China relations....

US Economy Fueled by AI Investment Faces Rising Risks Ahead of Fed Meeting

The U.S. economy continues to outperform most developed nations, supported by resilient consumer spending and a sharp rise in artificial intelligence investment, according to new institutional research from Citi. Recent...

Goldman Sachs Sees Stronger U.S. Dollar as Global Economic Gaps Widen

Goldman Sachs expects the U.S. Dollar to remain strong as diverging global macroeconomic trends continue to favor the American economy over other major regions. In its latest global research report released Friday, the...

Politics

Trump Weighs Taiwan Arms Deal as U.S. Denies Iran War Caused Delays

A source familiar with the matter said U.S. arms sales to Taiwan are not being delayed because of the ongoing conflict with Iran, pushing back against comments from a senior American official that suggested otherwise. The...

Trump-Lai Call Remains Uncertain as U.S.-China Tensions Over Taiwan Intensify

U.S. President Donald Trump has repeatedly suggested he may soon speak with Taiwanese President Lai Ching-te, but sources familiar with the matter say no concrete plans for a call currently exist. A direct conversation...

Marco Rubio Visits India to Rebuild U.S.-India Ties Amid Trade and Geopolitical Tensions

U.S. Secretary of State Marco Rubio arrived in India on Saturday for a four-day diplomatic visit aimed at strengthening the increasingly strained U.S.-India relationship. The visit comes as both countries attempt to move...

Xi Jinping Orders Full Rescue After Shanxi Coal Mine Gas Explosion Kills Eight

Chinese President Xi Jinping has ordered an all-out rescue operation after a deadly gas explosion struck a coal mine in northern Chinas Shanxi province, leaving eight workers dead and 38 others trapped underground. The...

Wang Yi to Lead UN Security Council Meeting and Visit Canada Amid Improving China-Canada Relations

Chinas Foreign Minister Wang Yi is set to travel to New York on May 26 to chair a high-level United Nations Security Council meeting, according to an announcement from Chinas foreign ministry on Friday. The diplomatic trip...

Science

Trump Administration Releases New UFO Files and Apollo Mission Records

The U.S. Defense Department has released dozens of previously classified UFO-related files following an order from President Donald Trump, sparking renewed debate over unidentified anomalous phenomena (UAP) and government...

China vs. NASA: The New Moon Race and What's at Stake by 2030

The space race is back and this time, its a direct competition between the United States and China for dominance on the lunar surface. NASAs Artemis II mission recently made history when four astronauts flew farther into...

NASA Artemis II: First Crewed Moon Mission Since Apollo Takes Four Astronauts on 10-Day Lunar Journey

NASAs Artemis II mission launched Wednesday, marking humanitys return to crewed lunar exploration for the first time since the Apollo era. Carrying four astronauts aboard the Orion spacecraft, this historic 10-day mission...

NASA's Artemis II Mission: First Crewed Lunar Journey Since Apollo

NASA's Artemis II Crew Arrives in Florida for Historic Moon Mission

The four astronauts chosen for NASAs Artemis II mission have touched down at Kennedy Space Center in Florida, marking the beginning of final launch preparations for the first crewed lunar journey in over 50 years. NASA...

Technology

SpaceX Starship V3 Test Flight Boosts IPO Momentum Ahead of Historic Market Debut

SpaceX successfully completed a major test flight of its upgraded Starship V3 rocket, marking a significant achievement for Elon Musks aerospace company as it moves closer to a highly anticipated initial public offering....

PDG Explores $1 Billion Sale of China Data Center Assets

Princeton Digital Group (PDG), a major data center operator backed by private equity firm Warburg Pincus, has reportedly launched a sale process for its China-based assets that could be valued at as much as $1 billion,...

Lam Research Expands AI-Powered Semiconductor Tools and Arizona Operations

Lam Research is accelerating its investment in artificial intelligence and advanced sensing technology to improve semiconductor manufacturing efficiency while expanding its presence in Arizona and California. The...

Texas Sues Meta Over WhatsApp Encryption Claims

Texas Attorney General Ken Paxton has filed a lawsuit against Meta Platforms and its messaging service WhatsApp, accusing the companies of misleading consumers about WhatsApps encryption and privacy protections. The...

Pentagon Expands AI Model Testing as It Seeks Alternatives to Anthropic’s Claude

The US Department of Defense is accelerating its evaluation of artificial intelligence models as it searches for alternatives to Anthropic PBCs Claude AI system, according to a Bloomberg report published Thursday. The...