52 A triple-star system with a misaligned and warped circumstellar disk shaped by disk tearing.

51 Small lightning flashes detected on Jupiter by Juno have shallow origins above the 2-bar level of Jupiter’s atmosphere where temperatures are too low for liquid water to exist.

50 A physics-based method correctly predicts most large solar flares through routine observations of the Sun.

49 Deep rotating convection generates the polar hexagon on Saturn.

48 Highly porous nature of a primitive asteroid revealed by thermal imaging.

47 Ammonium salts are a reservoir of nitrogen on a cometary nucleus and possibly on some asteroids.

46 Measurements from the Parker Solar Probe show that slow solar wind near the Sun’s equator originates in coronal holes.

45 The Parker Solar Probe mission has reached the inner heliosphere of the Sun and made measurements of energetic particle events in the near-Sun radiation environment.

44 Accretion of a giant planet onto a white dwarf star.

43 Enabling Martian habitability with silica aerogel via the solid-state greenhouse effect.

42 Uncovering the birth of the Milky Way through accurate stellar ages with Gaia.

41 Gas filaments of the cosmic web located around active galaxies in a protocluster.

40 A giant exoplanet orbiting a very-low-mass star challenges planet formation models.

39 Images from the Mobile Asteroid Surface Scout lander show that rocks on asteroid Ryugu are similar to carbonaceous chondrite meteorites.

38 A dominant population of optically invisible massive galaxies in the early Universe.

37 Mapping the Milky Way in three dimensions using Cepheid variable stars shows the Galaxy’s warped disk.

36 Orion SrcI's Disk Is Salty.

35 Formation of massive black holes in rapidly growing pre-galactic gas cloud.

34 An intuitive 3D map of the Galactic warp’s precession traced by classical Cepheids.

33 X-ray observations of the evolution of a black-hole transient suggest a shrinkage of its corona, rather than a change in the inner edge of the accretion disk.


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