Galaxy

• The James Webb Space Telescope has discovered an ancient black hole that appears to have formed before its host galaxy, challenging existing astronomical models. • These findings stem from observations of "Little Red Dot" galaxies, which are extremely distant and ancient objects in the early universe. • The discovery represents a "paradigm shift" for scientists, as it forces a total revisiting of classical scenarios regarding how black holes and galaxies co-evolve.

• NASA announced in December 2025 that construction of the Nancy Grace Roman Space Telescope is complete, with a scheduled launch by May 2027 or potentially as early as fall 2026. • During its five-year primary mission, the observatory aims to discover approximately 100,000 new transiting planets and create the largest catalog of rogue worlds in history. • This mission is significant because it will drastically expand the known exoplanet population and provide unprecedented data on planets drifting without host stars.

• NASA’s James Webb Space Telescope has identified a massive black hole that appears to have formed before its host galaxy. • This discovery challenges the traditional scientific consensus that galaxies form first, with black holes later developing from the collapse of massive stars within them. • The finding is significant because it suggests a different evolutionary path for the early universe, where black holes may act as seeds for galaxy formation.

• Samsung launched its Galaxy Watch blood pressure feature for U.S. consumers, enabling wrist-based hypertension tracking without cuffs. • FDA-cleared technology uses optical sensors calibrated via user input, integrated into latest watch models. • Matters for 116 million U.S. adults with high blood pressure, improving remote monitoring and chronic disease management.

• Samsung began rolling out Quick Share with AirDrop interoperability on Galaxy S26 devices and additional models on March 24, 2026, enhancing cross-platform sharing for U.S. users. • The update improves file transfer compatibility between Android and iOS ecosystems. • This move strengthens Samsung's position in the competitive U.S. smartphone market.

• NASA's Astronomy Picture of the Day highlights NGC 1566, a grand design spiral galaxy located approximately 40 million light-years away in the constellation Dorado, known for its two prominent and graceful spiral arms traced by bright blue star clusters and red emission nebulas. • The galaxy's flaring center makes it one of the closest and brightest Seyfert galaxies, likely housing a central supermassive black hole affecting surrounding stars and gas, making it a prime target for Hubble Space Telescope observations studying star formation and supernovas. • NGC 1566 is among the most photogenic spiral galaxies in the universe, featuring a gorgeous face-on view and dark cosmic dust lanes that make it an ideal object for astronomical research and observation.

Figuring out what really counts as a galaxy could give us insights into dark matter and potentially shake up astrophysics, cosmology and particle physics, says columnist Chanda Prescod-Weinstein