Are we talking about the same NASA which had the deadliest space disasters Challenger and Columbia? I think NASA and Roscosmos have been faring poor for ages now. Only China and India have been conducting most of the deep space missions and China has been sending humans to space without any casualties.
Yes, We are talking about the same Nasa which has following missions:
ACE
AIM
Analog Missions
Apollo
Apollo-Soyuz
Aqua
Aquarius
ARCTAS
Artemis Program (Human Spaceflight — Moon to Mars)
ARTEMIS and THEMIS Science Missions
ASTRO-1
ASTRO-2
Astro-E2 (Suzaku)
ATTREX
Aura
BARREL
CALIPSO
Cassini-Huygens
CHAMP
Chandra X-Ray Observatory
CINDI
Clementine
Cloud-Aerosol Transport System (CATS)
Cloudsat
Cluster ESA/NASA Mission
Commercial Crew
Commercial Resupply Services
Compton Gamma-Ray Observatory
Cosmic Background Explorer (COBE)
Cosmic Hot Interstellar Plasma Spectrometer (CHIPS)
CubeSats
Curiosity
CYGNSS (Cyclone Global Navigation Satellite System)
DART (Double Asteroid Redirection Test)
DAVINCI
Dawn
Deep Impact
DISCOVER-AQ
Dragonfly
Earth Observing-1
Earth Probe Total Ozone Mapping Spectrometer (EP-TOMS)
Earth Radiation Budget Satellite
ECOSTRESS
EnVision Collaboration
EPOXI
Euclid
Europa Clipper
Exploration Mission-1 (EM-1) (SLS/Orion)
Exploration Mission-2 (EM-2) (SLS/Orion)
Explorer
Extreme Ultraviolet Explorer
FAST
Fermi Gamma-ray Space Telescope
Fire and Smoke
FUSE
GALEX
Galileo
Gateway
Gemini
Genesis
Geotail
GLAST
Global Precipitation Measurement (GPM)
Glory
GOES
GOLD (Global-scale Observations of the Limb and Disk)
GRAIL
Gravity Probe-B
Gravity Recovery and Climate Experiment (GRACE)
Gravity Recovery and Climate Experiment Follow-On (GRACE-FO)
Herschel
HETE-2
Heliophysics
Hinode (Solar-b)
Hitomi (ASTRO-H)
Hubble
Hurricanes
IBEX (Interstellar Boundary Explorer)
ICESat
ICESat-2
IceBridge
Ionospheric Connection Explorer (ICON)
IMAGE
IMAP (Interstellar Mapping and Acceleration Probe)
InSight
International Gamma-Ray Astrophysics Laboratory (INTEGRAL)
International Space Station
IRIS (Interface Region Imaging Spectrograph)
IXPE (Imaging X-ray Polarimetry Explorer)
James Webb Space Telescope
Jason
Joint Polar Satellite System-2 (JPSS-2)
JUICE (JUpiter ICy Moons Explorer)
Juno
Kepler and K2
LADEE: Lunar Atmosphere Dust Environment Explorer
LAGEOS 1 and 2
Landsat
LCROSS
Low-Earth Orbit Flight Test of an Inflatable Decelerator (LOFTID)
LRO (Lunar Reconnaissance Orbiter)
Lucy (Trojan Asteroid Mission)
Lunar Outpost
Lunar Quest Program
Magellan
Magnetospheric Multiscale (MMS)
Mariner
Mars Express
Mars Exploration Rovers (Spirit and Opportunity)
Mars Global Surveyor
Mars InSight Lander
Mars Odyssey
Mars Pathfinder
Mars Perseverance Rover
Mars Reconnaissance Orbiter
Mars Science Laboratory (Curiosity)
MAVEN: Mars Atmosphere and Volatile EvolutioN
Mercury (Human Spaceflight Program)
MESSENGER: Mercury, Surface, Space Environment, Geochemistry and Ranging
Mini-RF
Moon Mineralogy Mapper
Nancy Grace Roman Space Telescope
Near Earth Asteroid Rendezvous (NEAR)
NEEMO (NASA Extreme Environment Mission Operations)
NEOWISE
New Horizons
Neutron star Interior Composition Explorer (NICER)
NISAR (NASA-ISRO Synthetic Aperture Radar)
NMP EO-1
NOAA-N
NOAA-N Prime
NPP
NuSTAR
Ocean Surface Topography Mission/Jason 2
Operation IceBridge
Orbiting Carbon Observatory-2
Orbiting Carbon Observatory-3
Orion Spacecraft
OSIRIS-REx
PACE (Plankton, Aerosol, Cloud, ocean Ecosystem)
Parker Solar Probe
Perseverance Rover
Phoenix
Pioneer
Pioneer Venus
Planck
POES
Polar
Psyche (Asteroid Mission)
Quesst
QuikSCAT
Radiation Belt Storm Probes/Van Allen Probes
Ranger
RapidScat
RHESSI
Roman Space Telescope
Roentgen Satellite (ROSAT)
Rosetta
RXTE
SDO (Solar Dynamics Observatory)
SEAC4RS
SERVIR
Scientific Balloons
Shuttle-Mir
Shuttle Radar Topography Mission
Skylab
Small Satellites
SMAP (Soil Moisture Active Passive)
SOFIA
SOHO
Solar Anomalous and Magnetospherice Particle Explorer (SAMPEX)
Solar Orbiter Collaboration
Solar Radiation and Climate Experiment (SORCE)
Sounding Rockets
Space Launch System (SLS)
Space Shuttle
Space Station
SPHEREx
Spitzer
Stardust-NExT
STEREO
Submillimeter Wave Astronomy Satellite (SWAS)
Suomi NPP
Surveyor
Suzaku
Swift
Surface Water and Ocean Topography (SWOT)
TDRS (Tracking and Data Relay Satellites)
Terra
TESS (Transiting Exoplanet Survey Satellite)
THEMIS
TIMED
TOMS-EP
TOPEX/Poseidon
TRACE
Tropical Rainfall Measuring Mission (TRMM)
TROPICS (Time-Resolved Observations of Precipitation structure and storm Intensity with a Constellation of Smallsats)
TWINS
Ulysses
Upper Atmosphere Radiation Satellite (UARS)
Van Allen Probes
VERITAS
Viking
VIPER
Voyager
Wide-Field Infrared Explorer (WIRE)
WIND
Wide-Field Infrared Survey Explorer (WISE)
Wide-Field Infrared Survey Telescope (WFIRST)
Wilkinson Microwave Anisotropy Probe (WMAP)
XMM Newton