Slowing of Solar Wind Shown by SWAP »

This schematic of the heliosphere shows the solar wind begins slowing at approximately 4 AU radial distance from the Sun and continues to slow as it moves toward the outer solar system and picks up interstellar material.

Ultima High Five »

New Horizons Principal Investigator Alan Stern gives a high five to Mission Operations Manager Alice Bowman after the team received signals from the spacecraft that it was healthy and collected data during the flyby of 2014 MU69, now known as Arrokoth, on Jan. 1, 2019, in the Mission Operations Center of the Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland.

2014 MU69/Arrokoth Naming Ceremony »

Rev. Nick Miles, of the Pamunkey Tribe, opens the 2014 MU69/Arrokoth naming ceremony at NASA Headquarters with a traditional Algonquian song.