Artemis II Earthset moment: iPhone capture during lunar flyby breaks the internet
April 20, 2026, 1:58 AM EDT. NASA's Artemis II crew completed a 10-day mission to the Moon and back, traveling a record 219,669 miles from Earth. During a seven-hour lunar flyby, the crew witnessed a total solar eclipse and an Earthset. Commander Reid Wiseman captured Earthset on a iPhone 17 Pro Max, an Apple device issued to each crew member. Wiseman wrote on X/Twitter, 'Only one chance in this lifetime,' describing the moment as a sunset from the far side of the cosmos. The crew includes Victor Glover, Christina Koch, and CSA astronaut Jeremy Hansen. Artemis II launched April 1, 2026, with a return splashdown on April 10, drawing millions online.
Arsenic trisulfide shows light-based nano-sculpting in a van der Waals crystal
April 20, 2026, 1:38 AM EDT. XPANCEO Emerging Technologies Research Center, with Nobel laureate Prof. Konstantin Novoselov, has shown arsenic trisulfide (As2S3), a crystalline van der Waals semiconductor, can be permanently modified and sculpted at the nanoscale with simple continuous-wave (CW) light, bypassing complex lithography or femtosecond lasers. The material exhibits strong photorefractivity, delivering a refractive-index change up to Δn ≈ 0.3-higher than BaTiO3 or LiNbO3. This enables light-activated optical functions inside a solid, with potential in telecom routing components, diffractive optics, and security/anti-counterfeiting patterns. In experiments, researchers carved a monochromatic Einstein portrait with 700-nm spacing, and demonstrated down to ~50,000 dots per inch (≈500 nm between points) with clear optical contrast. The work highlights a new engine for van der Waals crystals in nano-optics.
CRISPR variant ThermoCas9 targets cancer by reading DNA methylation
April 20, 2026, 1:07 AM EDT. Researchers from Wageningen University & Research and the Van Andel Institute report that a CRISPR variant, ThermoCas9, can distinguish tumor DNA from healthy DNA by reading DNA methylation, a chemical tag that marks gene activity. In cultured cells, ThermoCas9 cut tumor DNA while sparing healthy DNA, showing the system can exploit cancer's methylation fingerprint. The finding, published in Nature, positions ThermoCas9 as the first CRISPR-associated enzyme to respond to the most common form of DNA methylation in human cells. The approach hinges on a PAM sequence that includes a methylation site, enabling selective targeting. While promising, researchers cautioned this remains an early, preclinical step toward precise cancer therapies.
SpaceX to launch GPS III SV10 satellite for U.S. Space Force from Cape Canaveral
April 20, 2026, 12:57 AM EDT. SpaceX will launch a GPS III SV10 satellite for the U.S. Space Force from Cape Canaveral Space Force Station in a 15-minute launch window that opens at 2:57 a.m. EDT (0657 GMT). The Falcon 9 will place GPS III SV10 into medium-Earth orbit about 90 minutes after liftoff. The mission uses a booster making its seventh flight, with a landing expected on the droneship Just Read the Instructions. SV10 completes the GPS III program's 10-satellite line and brings improved positional accuracy and jam resistance over earlier GPS blocks, Space Force officials say. The launch follows a swap from Vulcan Centaur to Falcon 9 after SRB issues, with the Vulcan Centaur later assigned to USSF-70, no earlier than summer 2028.
The Science Of It: DIY Water Filtration Demonstration at Orlando Science Center
April 20, 2026, 12:40 AM EDT. At the Orlando Science Center, a conservation month segment demonstrates a makeshift, layered water filtration system built from common household items. The host assembles a funnel setup with a pitcher or repurposed bottle, then stacks coffee filters, rocks, moss, packing material, and sand to show how heavier materials sit at the bottom while finer particles are captured as water drips through. Using dirty pond water, the demo illustrates progressive clarification and explains why the choice of materials matters. The piece ties the experiment to water conservation and hurricane season, encouraging viewers to improvise low-cost filtration at home and avoid buying special products. It highlights the science of filtration in accessible, real-world terms.
Wireless headphones push beyond music with adaptive ANC and real-time translation
April 20, 2026, 12:14 AM EDT. Wireless headphones are moving beyond music playback toward ambient awareness and language: adaptive ANC and real-time translation are rising in prominence. The technology uses artificial intelligence and multiple microphones to tailor noise cancellation to the surroundings, deciding what to suppress and what to preserve. In practice, it can mute cabin rumble on a plane while letting a flight attendant's voice through for a quick chat. Examples already on the market include Soundcore Space One, with up to 40 hours of battery life under ANC, and Bose QC Ultra Gen 2, which uses AI to distinguish voice from noise during calls and adapts to changing environments. On translation, TimeKettle M3 and Padmate S66 Pro blend audio playback with speech recognition and real-time translation, enabling near-natural bilingual conversations. AIs drive the shift toward mainstream integration.
