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.
After a successful trip around the moon, everything has been going smoothly on the Orion spacecraft's journey back to Earth—except for the $23 million toilet, which has gotten clogged.
Canadian astronaut Jeremy Hansen told Prime Minister Mark Carney on Wednesday that "teamwork is willingness" during an Earth-to-space call celebrating the achievements of the historic lunar journey.
Lunar love knows no bounds. Now hurtling home from the moon, the Artemis II astronauts took a poignant page from Apollo 8 earlier this week, proposing deeply personal names for a pair of lunar craters.
A week after astronaut Jeremy Hansen blasted off on the historic Artemis II mission to the moon, his wife Catherine recalled the anxiety and thrill of witnessing the journey from afar.
They took thousands of photographs and documented copious observations on their voyage around the moon, but as they sped closer to home the Artemis astronauts said Wednesday they have barely started processing the extraordinary experience they shared.
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.
Twin control rooms at NASA's Marshall Space Flight Center in Huntsville, Alabama, are actively supporting real-time mission operations in lunar orbit as part of the agency's Artemis II mission, helping ensure astronaut safety and mission success as the crew prepares to return to Earth Friday, April 10.
The closest planet to our sun, Mercury, experiences extreme temperature variations. Since the planet has no atmosphere to speak of, it is in a constant cycle where one side is extremely hot and the other extremely cold. On the sun-facing side, temperatures reach a scorching 427°C (800°F), enough to melt tin and lead, and the surface is exposed to extremely lethal levels of radiation. On the night side, temperatures plunge to a chilling −173°C (-279.4°F), cold enough to freeze most liquids, including those used in battery manufacturing.
After successfully completing their mission to the moon, the Artemis II crew are about to return to Earth.
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 posted to the arXiv preprint server by 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.
On April 10, Artemis II—humanity's first mission to the moon in more than half a century—will draw to a close when the Orion capsule carrying four crew members detaches from its service module.
Drawing ever closer to Earth, the Artemis II astronauts tidied up their lunar cruiser for the upcoming "fireball" return and reflected on their historic journey around the moon, describing it as surreal and profound.
On Earth, extreme solar activity often appears as beautiful, benign auroras. But venturing beyond the safety of the Earth's magnetic field, one faces the full brunt of a temperamental star that can suddenly erupt with flares and coronal mass ejections.
While the Artemis II astronauts have been protected from the icy vacuum of space on their journey, their bodies have nonetheless been left exposed to possibly high levels of radiation—a danger of space travel that NASA is anxiously waiting to study.
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