NASA Conducting Extensive Testing of Solar Electric Propulsion (SEP) for Lunar Gateway
Power and Propulsion Element of Lunar Gateway under development by Maxar to utilize 6 and 12kW Hall-effect ion thruster systems built by Busek and Aerojet Rocketdyne with Moog xenon propellant feeder and Maxar power processing unit; Current testing regimen comes after initial testing phase finds both systems ‘capable of performing across the full mission power range’; SEP to keep Gateway on efficient NRHO during 15-year mission after Q4 2024 launch via SpaceX Falcon Heavy; Tiangong space station is only human-rated ion-powered spacecraft
NASA CAPSTONE targeting 13-22 June launch window; KARI Danuri set for 2 Aug, NASA Artemis 1 team working to achieve WDR 19 June then NET Aug launch; Vessels are bound for ~1,609×70,006km NRHO, elliptical 100km polar orbit, and 100×61,155km DRO respectively; NASA PRISM science proposals Lunar-VISE (investigation of Gruithuisen Domes), LEIA (study of yeast exposed to lunar environment) to receive CLPS task orders for launch circa 2026; NASA SSTR awarding US$150K to Air Company Holdings / NYU for development of RP-1 production process using only CO2 / H2; NASA Break the Ice Lunar Challenge phase 2 distributing $3M for water harvesting tech
Selected from 62,719 submissions across South Korea by a 1000-person focus group, Korea Pathfinder Lunar Orbiter, now Danuri (Moon Enjoy), set for launch on 2 Aug (19:37 EDT) to 100-km Moon orbit on SpaceX Falcon 9 via ballistic lunar transfer; 678-kg spacecraft is outfitted with 6 instruments – KARI-built Lunar Terrain Imager, Wide-Angle Polarimetric Camera, Magnetometer, Gamma-Ray Spectrometer, Disruption Tolerant Network Experiment Payload and NASA provided ShadowCam; NASA will also assist Danuri with ground station / comms / navigation support and 9-member KPLO Participating Scientist Program
NASA now targeting 6-22 June window for inaugural Artemis-era CAPSTONE launch to validate unique orbit around Moon, holding 
NASA CAPSTONE Moon probe launching on Rocket Lab Electron / Photon interplanetary kick stage is set to depart Earth NET 31 May, spending 6 days accelerating to 39,429 kph in LEO for 4-month fuel-sipping journey to test NRHO; Artemis 1 set for August per Administrator Nelson, however launch opportunities extend to 2023; KARI KPLO heading for lunar orbit 1 Aug, will broadcast K-pop; Roscosmos Luna-25 targeting 22 August while CLPS providers Intuitive Machines, Astrobotic and ispace of Japan strive to land on Moon within year
First space debris to strike Moon, likely upper stage of LM-3C used to deliver Chang’e-5 T1 to lunar free return trajectory, will “use its cameras to attempt to identify the impact site”; LRO 20x165km eccentric polar selenocentric orbit is calibrated to reach perilune over the Moon South Pole (now pinpointed to “halfway between 10 and 11 o’clock” of an imaginary clock superimposed over Shackleton Crater), requiring “weeks to months” to achieve favorable conditions; Impact may be visible in Release 50C (15 June) or 51A (15 July) 
Speaking to TOI, ISRO Chair S Somanath reiterates commitment to reaching lunar surface NLT year end, claiming place in history as 4th nation with a Moon landing mission after USSR, USA, China; “Final call” on launch date will depend on orbital parameters following craft testing, including drop test / landing simulation to be carried out at Satish Dhawan Space Centre in Sriharikota similar to testing of Chandrayaan-2 in Mahendragiri with 100-m crane / bungee cord used to simulate 1/6 Moon gravity, testing maneuvering; Somanath has also made clear that Chandrayaan-3 will include a stripped-down orbiter in addition to lander and rover, despite early reports that ISRO would forgo orbiter