Finally, Artemis delivers some exceptional, high-quality photos of the Moon

NASA’s Artemis II mission, carrying four astronauts on an out-of-this-world journey, flew around the Moon on Monday. The crew members took turns describing the stunning landscape below and captured images of Earth rising behind the Moon, in communications with Mission Control in Houston. What they did not send back in real time, due to a lack of communications bandwidth, was this high-resolution imagery. That changed on Monday night, when Orion established an optical link with Continue ReadingFinally, Artemis delivers some exceptional, high-quality photos of the Moon

Traveling tropical disturbance increases rainfall across the Hawaiian Islands

A new study by researchers at the University of Hawai’i at Mānoa revealed that the Madden–Julian Oscillation (MJO), a large-scale tropical disturbance that travels eastward through the tropics every 30–60 days, significantly influences climate conditions in Hawai’i. Their research, published recently in the Journal of Hydrometeorology, showed that during active MJO phases, rainfall increases across the islands, especially on windward slopes. In contrast, suppressed MJO phases tend to produce drier conditions.

New solar telescope turns sunspots into exoplanet-finding weapons

The Paranal solar ESPRESSO Telescope (PoET), installed at the European Southern Observatory’s (ESO’s) Paranal site in Chile, has made its first observations. The telescope will work with ESO’s ESPRESSO instrument to study the sun in detail. Described as a solar telescope for planet hunters, PoET aims to understand how the variation in the light from stars like the sun can mask the presence of planets orbiting them, helping us in our search for worlds outside the solar system.

Could We Actually Terraform Mars? A New Scientific Roadmap Lays Out the Blueprint—And the Risks

Reading the Mars Trilogy by Kim Stanley Robinson brings the benefits and pitfalls of efforts to terraform the Red Planet into sharp relief. Since the 1970s, when Carl Sagan first suggested the possibility that we could make Mars more Earth-like, that process has been a staple of science fiction. But there’s always been a significant amount of humanity that thinks we shouldn’t. A new paper available in pre-print on arXiv from Edwin Kite of the University of Chicago and his co-authors skirts around the ethical and moral questions of whether we should and tries to take a long hard look at whether we can.

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All eyes on Orion’s heat shield: Artemis 2 astronauts will hit Earth’s atmosphere at nearly 24,000 mph on April 10

Artemis 2’s Orion capsule will hit Earth’s atmosphere at nearly 24,000 mph on April 10. A heat shield and 11 parachutes will help it survive the fiery trip and splash down safely. Continue ReadingAll eyes on Orion’s heat shield: Artemis 2 astronauts will hit Earth’s atmosphere at nearly 24,000 mph on April 10

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The Moon is already on Google Maps—did Artemis II really tell us anything new?

The data pipeline from NASA’s Artemis II mission opened to full blast a few hours after looping behind the far side of the Moon on Monday night, when the Orion spacecraft established a laser communications link with a receiving station back on Earth. A cache of high-resolution images began streaming down through this connection. NASA released the first batch to the public Tuesday. Most of the images were taken by the four Artemis II astronauts Continue ReadingThe Moon is already on Google Maps—did Artemis II really tell us anything new?

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What if dark matter came in two states?

The absence of a signal could itself be a signal. This is the idea behind a new study published in the Journal of Cosmology and Astroparticle Physics, which aims to redefine how we search for dark matter, showing that it may not be necessary to find the same “clues” everywhere in order to interpret it.