Why Mercury Doesn’t Play by Earth’s Rules: The Sulfur Problem
Monday, 20 April 2026 06:36
Mercury’s magmas may not play by Earth’s rules. Laboratory work suggests that the innermost planet’s sulfur-rich, iron-poor chemistry could fundamentally alter how molten rock crystallizes, meaning planetary scientists cannot safely borrow terrestrial assumptions when reconstructing how Mercury’s mantle solidified. Research using the Indarch meteorite, an enstatite chondrite, as a stand-in for Mercury’s building blocks has […]
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The Elements That Built Us: Rewriting How Dying Stars Seeded the Cosmos
Monday, 20 April 2026 04:35
X-ray light from a cluster of more than a thousand galaxies has just forced astrophysicists to rewrite a central chapter in the story of how the universe builds its elements. Studies of data from Japan’s Hitomi telescope have found that the standard theoretical models describing what massive stars forge in their dying moments may be […]
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New Glenn’s Reuse Milestone Is Overshadowed by the Stage That Failed
Monday, 20 April 2026 02:28
AST SpaceMobile promised investors 45 satellites in orbit by year-end. After losing BlueBird 7 to a New Glenn upper stage failure in April, the company said it still expects one to two launches per month through the rest of 2026. The rocket that just failed its customer will likely be grounded for months pending an […]
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Switzerland Brokers DRC-M23 Deal as Eastern Congo Fighting Persists
Sunday, 19 April 2026 18:36
The Democratic Republic of Congo government and M23 rebels have reportedly signed a tentative agreement in Switzerland to ease humanitarian aid deliveries, release prisoners within 10 days, and establish a ceasefire monitoring mechanism, according to a joint statement reported by Al Jazeera. Fighting on the ground has continued. The deal emerged from five days of […]
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Space Force weighs Vulcan flights without solid boosters
Sunday, 19 April 2026 16:59
Vulcan would be allowed to fly lower-energy missions as investigation of solid rocket motors anomaly continues
Resilience isn’t bouncing back. It’s the slow, unglamorous work of rebuilding a self that knows what broke it.
Sunday, 19 April 2026 14:05
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Resilience has been sold to us as a spring mechanism. You compress under load, then snap back to your original shape. The metaphor is tidy, which is probably why it survives despite
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Blue Origin reuses New Glenn booster for the first time in Florida launch
Sunday, 19 April 2026 13:10We’re checking your connection to prevent automated abuse
Fusion’s Credibility Problem: Why Two Startups Are Going Public Before Proving Their Physics
Sunday, 19 April 2026 13:08
The fusion energy industry’s funding euphoria is showing its first real fractures, with two marquee companies rushing toward public markets before clearing the scientific threshold that would prove their reactors can actually work. TAE Technologies and General Fusion have both announced mergers with publicly traded shells in recent months, moves that have split founders, investors, […]
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Third New Glenn launch suffers upper stage malfunction
Sunday, 19 April 2026 12:54
Blue Origin’s New Glenn suffered a malfunction of its second stage on the rocket’s third flight April 19, stranding its payload in an “off-nominal” orbit.
A Universe in Silicon: How COLIBRE’s Simulated Cosmos Mirrors What Webb Actually Sees
Sunday, 19 April 2026 12:38Astronomers have built a virtual universe detailed enough that its simulated galaxies are nearly indistinguishable from the real ones the James Webb Space Telescope sees in deep space. The project, called COLIBRE, traces cosmic evolution from the first billion years after the Big Bang to the present day, and for the first time in a […]
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The ‘Quadruple Tap’: Anatomy of a Strike Pattern Designed to Kill First Responders
Sunday, 19 April 2026 11:06
Israeli forces have reportedly killed 91 healthcare workers and wounded more than 200 others in Lebanon since the current war with Hezbollah began in early March, according to Lebanese health ministry figures, in a pattern of strikes that emergency responders now describe using a new term of art: the quadruple tap. The phrase emerged from […]
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The Pentagon’s Quiet Bet on GPS-Free Spacecraft Navigation
Sunday, 19 April 2026 10:36
Rhea Space Activity, a Washington-based startup, has closed a $6 million Series A round to commercialize an autonomous navigation system that lets spacecraft fix their position by photographing other objects in orbit rather than relying on GPS. The funding, reported by SpaceNews, lands at a moment when the Pentagon is actively shopping for alternatives to […]
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Rhea Space Activity raises $6 million to develop GPS-free spacecraft navigation
Sunday, 19 April 2026 09:41
Technology traces roots to NASA’s Jet Propulsion Laboratory
The post Rhea Space Activity raises $6 million to develop GPS-free spacecraft navigation appeared first on SpaceNews.
The Chip That Wants to Dethrone Nvidia Heads to Wall Street
Sunday, 19 April 2026 08:36
Cerebras Systems is heading to Wall Street with something no AI chip startup has brought to an IPO before: a contract with OpenAI reportedly valued at more than $10 billion. That single deal, covering inference workloads where speed matters more than raw training throughput, anchors the most credible challenge to Nvidia’s dominance that the semiconductor […]
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The unglamorous empire of spaceflight insurance: How a few London underwriters quietly decide which rockets fly and which ideas die in committee
Sunday, 19 April 2026 07:36
A small group of London underwriters quietly shape which space projects fly and which die in committee. The mechanism is rarely visible, but its consequences run through every commercial mission.
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