Space Physics Digest

Cloud-9 is a 4,900-light-year hydrogen cloud with no detectable stars and a stellar mass upper limit of just 16,000 suns.

• This ultra-deep...

China's FAST has discovered 1,284 pulsars and now leads global efforts to study neutron-star planets and exoplanet magnetic fields.

• FRBs are mapping...

ESA is preparing two independent teams to operate FLEX and Sentinel-3C in parallel after their shared September launch.

• Separate control rooms,...

Chandra has uncovered hypersoft X-ray sources in six galaxies that emit unusually low-energy X-rays alongside strong ultraviolet output, unlike any...

Gravitational lensing offers a direct test of extra-dimensional models that replace dark matter and dark energy.

• Lens equation, potential, and...

Population synthesis shows magnetars represent ~50% of isolated neutron stars, peaking at initial fields of 1–2.5 × 10¹⁴ G.

This matches the observed...

The giant April 1947 sunspot, spanning 0.6% of the solar disk, possessed enough energy to unleash a superflare releasing more than trillions of...

Gilmour Space and Hypersonix are combining rocket propulsion, launch services, and scramjet technology to create frequent, sovereign hypersonic...

Relativity Space’s Terran R has joined NASA’s NLS II contract via the annual on-ramp provision, making the heavy-lift rocket eligible for future...

• International team used 130 hours on the Large Binocular Telescope to measure primordial helium in 15 pristine galaxies
• Uncertainty cut to 0.5% —...

The helium created in the universe’s first five minutes offers a stringent test of Big Bang nucleosynthesis and the Standard Model.

• New 0.5%...

Fast radio bursts act as cosmic measuring sticks: their signals disperse more when passing through denser ordinary (baryonic) matter, allowing...

Tests of whether AI can rediscover general relativity from pre-1915 data reveal current models perform pattern recognition and reconstruction rather...

Quantum sensors based on nitrogen-vacancy centers in diamond nanocrystals can now measure biophysical properties inside living cells in real time with...

Caltech Owens Valley Radio Observatory 主办的2026天文学公开讲座系列，为公众提供系统接触黑洞、高能宇宙线及极端天体物理的优质渠道。

• 9月17日 Richard Plotkin 主讲《黑洞近与远》
• 10月15日 Kathryn Plant...

Ultra-fast black hole winds have been detected for the first time in a 'dead' galaxy, published today by ESA.

Free-floating planets pass stars without capture because energy conservation prevents binding.

• They accelerate toward the star then decelerate,...

With NASA's Mars Sample Return canceled, Japan's MMX mission now stands alone as the quickest path to physical Martian material, by collecting Phobos...

• ESA is accelerating Ariane 6 and Vega-C rates to resolve a looming satellite deployment bottleneck
• Arianespace targets a stable 9-10 Ariane 6...

Merging black holes produce a fading "ringdown" of gravitational waves whose frequencies depend only on mass and spin under standard general...