标签：#nas

"I pretty much, at that point in time, gave up on being an astronaut."

Experts explain how they work, what they can do, and what's still unsettled.

"Industry finally knows what NASA is asking of them."

Something on Pluto and one of Saturn’s moons, Titan, absorbs light in a way unexplained by anything in spectroscopic databases.

Explore decades of incredible images and videos of stars, planets, moons, and galaxies—most of which are free to use and share.

"That would be an awesome capability."

NASA’s quiet supersonic flight tests could eventually go on a national tour.

"Contract values for these efforts ballooned from nearly $2.8 billion to $5.9 billion."

SpaceX has told NASA it plans to launch Starship every eight days from Kennedy.

Relativity Space, the rocket company led by former Google executive Eric Schmidt, was picked to launch NASA's Aeolus payload to Mars in 2028, as reported earlier by TechCrunch. Under a new public-private partnership, Relativity Space will provide the "spacecraft, rocket, and cruise operations" to fly Aeolus to Mars, where the payload will "provide the first […]

This has been a persistent, behind-the-scenes dispute between NASA and Roscosmos.

As of today, SpaceX is owned by investors who will want to see it make money.

"I was on the phone with Blue Origin leadership that night, all the next day, all through the weekend."

"Artemis III will be an extraordinary demonstration of what is possible."

The space agency said Roscosmos discovered new leaks in the Russian service module.

You buy a NAS for silent, always-on storage. It sits in a corner, humming quietly, doing its thing. Then you install Docker. Then Syncthing. Then a few containers. Suddenly the HDDs never stop. Seeking, spinning, clicking. Not occasionally - constantly. At 2am you can hear it from the next room. This is what happened, why it happens, and how to make it stop. What's Actually Causing the Noise Mechanical HDDs make noise when the read/write head moves. The more random the I/O - small reads and writes scattered across the disk - the more seeking, the more noise. Sequential writes to a single file are quiet. Random I/O across thousands of small files is loud. Docker and Syncthing are both pathological for HDDs in different ways. Docker overlay2 Docker's default storage driver is overlay2. Every container runs on top of layered filesystems - the image layers are stacked, and a thin writable layer sits on top for each running container. Every file operation inside a container that touches a file from a lower layer triggers a copy-on-write : the entire file gets copied up to the writable layer before the write happens. On an SSD this is fast and silent. On spinning HDDs with mechanical heads, every copy-on-write is a seek, a read, and a write - often scattered across the disk. And it's not just copy-on-write. Docker's overlay2 metadata lives in small files across a deep directory tree. Container startup reads dozens of these. Log rotation writes to them. Health checks touch them. Any container doing anything at all generates constant scattered I/O. Syncthing's 60-Second Heartbeat Syncthing uses BoltDB as its internal database - it stores file indexes, sync state, and peer information there. BoltDB flushes to disk every 60 seconds regardless of whether anything changed. On a busy sync folder with thousands of files, this flush isn't a single sequential write. It rewrites pages across the B-tree structure, which means multiple seeks across the database file. Quiet when it's a

The Seoul-based rocket startup is developing its own launch vehicles and engines.

The detonation of the New Glenn rocket resulted in a huge fireball in Florida and may have long-term implications for the company's ambitions.

While Blue Origin investigates the root cause behind last night's spectacular explosion of its New Glenn rocket, it's already clear that this will be a major setback for NASA's Moon base plans and Amazon's fledgling Leo space internet constellation. The incident occurred at about 9pm at Blue Origin's Florida launch site during a hot-fire test, […]

The project’s first mission could arrive as soon as this year, with a little help from Blue Origin.