Space Physics Digest

SpaceX Falcon 9 will loft 27 Starlink satellites to low-Earth orbit for the USSF-259 mission.

• Launch window: Opens 6–10 p.m. PDT on Sept. 15 from...

Li-Xin Li's work as a theoretician spans high-energy astrophysics and general relativity.

• Predicted electromagnetic transients from neutron star...

A new $915,343 NSF grant will complete fiber-optic links across the CHARA Array, nearly doubling its longest baselines and angular resolution to...

Euclid's 3D map of large-scale structure and dark energy studies gain critical wavelengths, colors, and detail from ground telescopes like Pan-STARRS on Haleakalā, complementing the space mission's 2023-launched imaging.

Starship's Sept. 22 launch marks the shift from suborbital tests to orbital operations, proving the fully reusable heavy-lift architecture by...

Multi-messenger astronomy marks a breakthrough by enabling simultaneous observations of astrophysical events, setting the stage for AI to detect,...

Precise mid-course corrections and fuel savings from the orbital dynamics team are projected to more than double Roman’s operational lifetime.

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The new Space Catalyst Partnership converts Artemis Accords diplomacy into practical projects, launching with a $6.5 million rural connectivity effort...

BepiColombo's SIXS instrument recorded solar electrons and protons precipitating onto Mercury's airless surface during the 165-kilometre flyby on 4...

JWST's detection of MoM-z14 at redshift >14 places a bright galaxy just 280 million years after the Big Bang, displacing the prior record and...

Nancy Grace Roman joined NASA in 1959, six months after its founding, and rose to chief of astronomy and solar physics after leaving academia over...

Can information, entropy, and thermodynamics explain how ordered structures arise in the universe?

• GfE theory treats space-time metrics as quantum...

Using oxygen-proton collisions at the LHC in July 2025, physicists recreated cosmic ray air showers in the lab for the first time. The ATLAS...

JWST and Hubble found 27 tiny TNOs (down to 6 miles across) that preserve pristine surfaces, contradicting predictions of impact-driven mixing and...

NASA uses high-altitude balloons as flexible, low-cost testbeds for space instruments before orbital missions. The BOOP! flight on Sept. 13 carried...

A global survey shows physicists divided on cosmology, dark matter, and quantum gravity, with no majority support for standard models or leading...

In a predicted quantum droplet, an attractive force binding bosons and fermions is exactly countered by fermion pressure, creating stability without...

JWST has detected opposite opacity shifts in Chariklo's two rings—an inner ring growing denser while the outer thins—showing that even a 155-mile-wide body at 17 AU can host evolving ring systems once assumed stable only around giant planets.

The American Journal of Physics offers an accessible introduction to the cosmological constant problem, illuminating why vacuum energy counts among modern physics’ deepest unresolved puzzles.

A gas giant exoplanet KMT-2025-BLG-0030L b (1.15 Jupiter masses, ~1.22 Jupiter radii) was discovered in 2026 via microlensing, orbiting its star at 2.35 AU with a 4.7-year period.