- Feasibility study of a mission to Sedna – Nuclear propulsion and solar sailing Hacker News
- Direct Fusion Drive Could Give Us One-In-A-Thousand-Year Opportunity To Visit Sedna IFLScience
- New propulsion systems could enable a mission to Sedna
Category: 1. Edi-Choice
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Feasibility study of a mission to Sedna – Nuclear propulsion and solar sailing – Hacker News
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China’s Tianwen-2 Probe Captures Stunning New Images of Earth and the Moon
The China National Space Administration (CNSA) has unveiled breathtaking images of Earth and the Moon, taken by the Tianwen-2 probe currently orbiting space. These images, released on July 1, 2025, highlight the performance of Tianwen-2’s…
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Astronomers may have found a third interstellar object
There is a growing buzz in the astronomy community about a new object with a hyperbolic trajectory that is moving toward the inner Solar System.
Early on Wednesday, the European Space…
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An enormous ‘X’ and ‘V’ will grace the moon’s surface on July 2. Here’s how to see them
The night of the first quarter moon phase on July 2 presents a good opportunity to spot a colossal ‘X’ and ‘V’ emblazoned on the lunar surface.
This month’s first quarter phase occurs at 11:41 p.m. EDT on July 2 (0341 GMT on July 3), at which…
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An Ominous “Cold Spot” Grows South of Greenland in the Atlantic Ocean—Scientists Warn of a Silent Disaster Brewing Below the Waves
Far north in the Atlantic, an enduring enigma has captured the attention of oceanographers and climate researchers. This anomaly, detected by satellites and ocean buoys, has puzzled experts for years. Recent research offers new clues that may…
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Northern lights may be visible in these 13 US states on July 2
Northern lights could put on a show tonight (July 2) as an incoming coronal mass ejection (CME) could spark a geomagnetic storm, according to the National Oceanic and Atmospheric Administration (NOAA).
A CME released on June 28 is due to impact…
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Scientist warns shortest day in history is coming in WEEKS as Earth’s rotation unexpectedly speeds up
A scientist has warned that Earth’s rotation is unexpectedly accelerating, leading to the shortest day in history in just a few weeks.
Graham Jones, an astrophysicist at the University of London, says Earth’s rotation could speed up noticeably…
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Around 250 million years ago, Earth was near-lifeless and locked in a hothouse state. Now scientists know why
Some 252 million years ago, almost all life on Earth disappeared.
Known as the Permian–Triassic mass extinction – or the Great Dying – this was the most catastrophic of the five mass extinction events recognised in the past 539…
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The Sky In July 2025
The Perseid meteor shower begins this month.
Each month, I pick out North America’s celestial highlights for the week ahead (which also apply to mid-northern latitudes in the Northern Hemisphere). Check my main feed for more in-depth…
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The ‘Great Dying’ wiped out 90% of life, then came 5 million years of lethal heat. New fossils explain why
Around 252 million years ago, life on Earth suffered its most catastrophic blow to date: a mass extinction event known as the “Great Dying” that wiped out around 90% of life.
What followed has long puzzled scientists. The planet became…
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