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Why Mercury Doesn't Play by Earth's Rules: The Sulfur Problem

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 […]

The post Why Mercury Doesn’t Play by Earth’s Rules: The Sulfur Problem appeared first on Space Daily.

The Elements That Built Us: Rewriting How Dying Stars Seeded the Cosmos

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 […]

The post The Elements That Built Us: Rewriting How Dying Stars Seeded the Cosmos appeared first on Space Daily.

New Glenn's Reuse Milestone Is Overshadowed by the Stage That Failed

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 […]

The post New Glenn’s Reuse Milestone Is Overshadowed by the Stage That Failed appeared first on Space Daily.

Switzerland Brokers DRC-M23 Deal as Eastern Congo Fighting Persists

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 […]

The post Switzerland Brokers DRC-M23 Deal as Eastern Congo Fighting Persists appeared first on Space Daily.

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.

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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

The post Resilience isn’t bouncing back. It’s the slow, unglamorous work of rebuilding a self that knows what broke it. appeared first on Space Daily.

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Fusion's Credibility Problem: Why Two Startups Are Going Public Before Proving Their Physics

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, […]

The post Fusion’s Credibility Problem: Why Two Startups Are Going Public Before Proving Their Physics appeared first on Space Daily.

NG-3 liftoff

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

Astronomers 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 […]

The post A Universe in Silicon: How COLIBRE’s Simulated Cosmos Mirrors What Webb Actually Sees appeared first on Space Daily.

The 'Quadruple Tap': Anatomy of a Strike Pattern Designed to Kill First Responders

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 […]

The post The ‘Quadruple Tap’: Anatomy of a Strike Pattern Designed to Kill First Responders appeared first on Space Daily.

The Pentagon's Quiet Bet on GPS-Free Spacecraft Navigation

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 […]

The post The Pentagon’s Quiet Bet on GPS-Free Spacecraft Navigation appeared first on Space Daily.

The Chip That Wants to Dethrone Nvidia Heads to Wall Street

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 […]

The post The Chip That Wants to Dethrone Nvidia Heads to Wall Street appeared first on Space Daily.

The unglamorous empire of spaceflight insurance: How a few London underwriters quietly decide which rockets fly and which ideas die in committee

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.

The post The unglamorous empire of spaceflight insurance: How a few London underwriters quietly decide which rockets fly and which ideas die in committee appeared first on Space Daily.

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