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Hello, World
NASA astronaut and Artemis II Commander Reid Wiseman took this picture of Earth from the Orion spacecraft’s window after completing the translunar injection burn. There are two auroras (top right and bottom left) and zodiacal light (bottom right) is visible as the Earth eclipses the Sun.
This and another photo of Earth are the first downlinked images from the Artemis II astronauts. See more photos from Orion as they are shared.
See and hear what the astronauts do with our 24/7 feed.
Image credit: NASA/Reid Wiseman
Hello, World
The Habitable Worlds Observatory Will Need Astrometry To Find Life
We’re getting closer and closer to finding a real Earth-like exoplanet. But finding one is only half the battle. To truly know if we’re looking at an Earth analog somewhere else in the galaxy, we have to directly image it too. That’s a job for the Habitable Worlds Observatory (HWO), a planned space-based telescope whose primary job is to do precisely that. But even capturing a picture and a planet and getting spectral readings of its atmospheric chemistry still isn’t enough, according to a new paper available in pre-print on arXiv by Kaz Gary of Ohio State and their co-authors. HWO will need to figure out how much a planet weighs first.
Week in images: 30 March - 03 April 2026
Week in images: 30 March - 03 April 2026
Discover our week through the lens
How worried should you be about an AI apocalypse?
How worried should you be about an AI apocalypse?
Where did the ‘Oh-My-God’ particle come from?
A single subatomic particle from deep space had the same energy as a baseball pitch, and scientists still don’t know how it got here
See the first stunning images of a massive coral reef that has lain hidden for decades
These incredible corals form what may be one of the world’s largest reef systems—and researchers have a plan to restore it
NASA’s Artemis II astronauts put spacecraft systems to the test on 10‑day mission
Artemis II blasts off on a high‑stakes lunar flyby, marking NASA’s first crewed mission to the moon in decades
Multipurpose anti-viral pill may treat colds, norovirus, flu and covid
Multipurpose anti-viral pill may treat colds, norovirus, flu and covid
How a DIY worm farm can compost food scraps, paper or a whole kangaroo
How a DIY worm farm can compost food scraps, paper or a whole kangaroo
This Week's Sky at a Glance, April 3 – 12
Arcturus, the Spring Star, is on its way up in the east. Vega, the Summer Star, rises later in the evening. Jupiter shines high toward the southwest.
The post This Week's Sky at a Glance, April 3 – 12 appeared first on Sky & Telescope.
Earth from Space: Eyes on our Moon
Do the Moon’s Poles Hold Less Water Than We Thought?
New observations reveal that permanently shadowed regions at the lunar poles might contain less water ice than astronauts were hoping for.
The post Do the Moon’s Poles Hold Less Water Than We Thought? appeared first on Sky & Telescope.
Barents Sea Tied to Low Arctic Sea Ice
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