Satellites are polluting Earth's atmosphere with heavy metals. Could refueling them in orbit help?

A centuries-old Japanese manual on the philosophy and tactics of the samurai—originally written for warriors willing to die for their lords—has just been translated into English for the first time. The text, "A How-To for the Self-Sacrificing Samurai," offers a gritty, unromanticized look at the mindset of feudal Japan’s elite fighters, blending practical combat advice with stark reflections on duty and mortality.

Editor’s Note: This isn’t just another samurai book—it’s a raw, unfiltered glimpse into a world where honor and death were intertwined. For history buffs, martial artists, or anyone curious about the psychological weight of bushido (the "way of the warrior"), this translation bridges a cultural gap. It challenges modern perceptions of samurai as just sword-swinging heroes, revealing the brutal reality behind the myth.

Scientists have discovered that probiotics—those same beneficial bacteria we take for gut health—can actually help damaged coral reefs recover in the wild. Unlike antibiotics, which can have unintended side effects, this method uses natural bacteria to boost coral resilience and healing.

Editor’s Note: Coral reefs are dying at an alarming rate due to climate change, pollution, and disease. If this probiotic technique scales up, it could be a game-changer for saving these critical ecosystems—without the downsides of harsher treatments. It’s a rare piece of hopeful news in the fight to protect ocean life.

A team of researchers in Melbourne has made a major leap in the hunt for an HIV cure by figuring out how to expose the virus hiding inside white blood cells—a long-standing roadblock. Their breakthrough could eventually lead to completely flushing HIV from the body, something that’s eluded scientists for decades.

Editor’s Note: HIV has been notoriously hard to cure because it lurks dormant in cells, evading treatments. If this discovery holds up, it could transform millions of lives by turning HIV from a managed condition into a curable one. It’s not a done deal yet, but it’s the kind of progress that makes scientists—and patients—dare to hope.

A private Japanese company is attempting to land its spacecraft on the moon’s far northern region—a tricky but potentially groundbreaking mission. If successful, it would mark a major milestone for private space exploration, joining an elite group of entities that have soft-landed on the lunar surface.

Editor’s Note: Landing on the moon is still a big deal, especially for private companies. This mission could pave the way for more commercial lunar ventures, from mining to research, and reinforce Japan’s growing role in the new space race. Plus, the moon’s far north is an underexplored area—so any data collected could be a goldmine for scientists.

Scientists are sounding the alarm about a troubling trend—our oceans are getting darker. Satellite data shows that vast stretches of the sea are losing light, which could spell trouble for marine life. The "photic zone," the sunlit surface layer where 90% of ocean creatures live, relies on subtle light cues for everything from coral spawning to daily migrations. Professor Tim Smyth explains how pollution, plankton shifts, and other factors might be driving this change—and why it could disrupt entire ecosystems.

Editor’s Note: Imagine turning down the lights in a bustling city—traffic would snarl, businesses would struggle, and daily rhythms would falter. That’s essentially what’s happening underwater. Since so much marine life depends on light, even small shifts could ripple through food chains, fisheries, and coastal economies. It’s a quiet crisis with loud consequences.