Though the asteroid Apophis will not collide with Earth in 2029, there is a slim but present possibility that it will strike an artificial object orbiting Earth, potentially compromising future missions to the asteroid.

Analysis of 93 stellar halos detected in a sample of 169 high-inclination galaxies showed that high-mass galaxies have more extended halos and more active merger histories, among other findings.

PAN-z14-1 is the fourth most distant galaxy known to date, and its properties are consistent with the emerging picture of two separate galaxy populations at redshifts greater than 10.

Simulations predict that the Roman Space Telescope will discover 33 ± 9 young exoplanets in a one-month survey, expanding our understanding of the properties of planets around very young stars.

Though Type Ic supernovae are classified in part by the lack of helium lines in their spectra, recent modeling of a near-infrared supernova spectrum suggests that helium is present but undetectable in the optical.

Researchers present the first high-resolution multi-wavelength observations of a triple-nucleus merger, showing one black hole with mass of order 100 million solar masses and two with evidence of tidal disruption.