Oort cloud Comet Siding Spring makes a close fly-by the planet Mars passing within 140,000 kilometres.
Astronomers at Pan-STARRS announce the discovery of a small near-Earth object (NEO) HLV2514, which is an Amor asteroid near Mars. The asteroid was first discovered in June 2020 by two 14-year-old Indian schoolgirls who were participating in a NASA project.
The ExoMars Trace Gas Orbiter reveals dust devils in the Mars region Ariadnes Colles. New measurements indicate astronauts traveling to Mars would experience 60% of their recommended career exposure to radioactivity in a single roundtrip journey.
SpaceX successfully launches its Falcon Heavy rocket, a feat the space company hopes will lead to increased commercial and national security missions. Both boosters were successfully landed and recovered. The core didn't land and was softly ditched in the water near the drone ship. The rocket launched Elon Musk's Tesla Roadster, playing "Life on Mars" by David Bowie, which is expected to be in an elliptic orbit of the sun, close to Mars, for several hundred million years.
SpaceX successfully tests its most powerful rocket to date. The company's goal will be to use the Raptor (rocket engine) to power their "super-heavy" Interplanetary Transport System in facilitation of the colonization of Mars and beyond.
A pinch of fine sand and dust became the first solid Martian sample deposited into the Sample Analysis at Mars, the biggest instrument on NASA's Mars rover Curiosity. The sample came from the patch of windblown material called Rocknest, which had provided a sample previously for mineralogical analysis by CheMin instrument.