The companion light curve in two continuum bands interpreted with a pulsar direct heating model. (a) The models are shown by the curves and the data are shown by the
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3I/ATLAS may be revving an engine, Harvard professor suggests
(NewsNation) — The Harvard astrophysicist who has openly wondered whether presumed comet 3I/ATLAS is an alien vessel is sharing some of his latest observations, including what he calls “non-gravitational acceleration” of
China's Tianwen-1 Orbiter Spots 3I/ATLAS
Using its high-resolution camera, China’s Tianwen-1 orbiter has successfully observed the interstellar object 3I/ATLAS at a distance of about 30 million kilometers, according to the China National Space Administration (CNSA).
AST SpaceMobile sheds more light on sovereign direct-to-device plan for Europe
TAMPA, Fla. — AST SpaceMobile has registered plans with international regulators via Germany for a sovereign, space-based network that would provide broadband directly to devices across Europe, the U.S.-based satellite
Hegseth pledges sweeping overhaul of Pentagon procurement
WASHINGTON — Defense Secretary Pete Hegseth on Nov. 7 outlined an ambitious slate of procurement and regulatory reforms aimed at breaking through what he called the Pentagon’s “backwards culture” and
Aging stars destroy their planets more often than we thought: What does this mean for Earth?
Using NASA’s Transiting Exoplanet Survey Satellite (TESS), astronomers have discovered that aging stars in their so-called “red giant” phase are even more destructive to their orbiting planets than previously suspected.
No, interstellar comet 3I/ATLAS hasn't 'changed color', scientist says
Comet 3I/ATLAS continues to captivate the public. The comet is only the third known interstellar visitor to our solar system, and has been repeatedly surprising astronomers as it flies through
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Amplification of the successor function under varying initial conditions. For each pixel in the heatmap, 100 soups containing 5000 expressions are run for 106 collisions. We measure the number of
PARIS — Launch companies are reiterating plans to sharply increase flight rates to meet growing government and commercial demand, even as some fall short of earlier projections. Executives speaking at
Reduced flux maps of HD 143811 AB obtained by Gemini/GPI in 2016 and 2019 (left and center) and Keck/NIRC2 in 2022 (right). These images are 2” × 2”. North is
PARIS – EchoStar is looking for ways to expand its communications business as an “asset-light growth company,” CEO Hamid Akhavan said Sept. 15, after regulatory pressure prompted a series of
NASA/Michael DeMocker NASA astronauts Matthew Dominick (left) and Mark Vande Hei (right) prepare to fly out to a landing zone in the Rocky Mountains as part of the certification run
Sometimes an unusual celestial sight will take place at a rather ungodly hour. As a budding young amateur astronomer living in the Bronx, I remember the bemused look on my
The United States space enterprise is undergoing a sweeping transformation: commercial innovation is progressing at an incredible pace, with profound implications for national defense, economic competitiveness and industrial resilience. The
At a double observatory atop Mount Teide on the Spanish island of Tenerife, a powerful laser is being deployed to track fragments of space debris in orbit and warn when
PARIS – Expanding defense budgets and the direct-to-device race are driving growth in the global space economy, Novaspace CEO Pacôme Révillon, said at the outset of the World Space Business Week
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