Short answers, pulled from the story.
The Hope probe entered Mars orbit on the 9th of February 2021, after a thrust burn of about 27 minutes that began around 19:42 Gulf Standard Time. The arrival made the United Arab Emirates the fifth country ever to reach Mars and the first Arab nation to do so.
Omran Sharaf served as the mission's project director and headed the team, while Sarah Amiri worked as deputy program manager and lead science investigator. Pete Withnell served as program manager, with Ibrahim Hamza Al Qasim and Zakareyya Al Shamsi as deputy project managers for strategic planning and operations.
Sheikh Mohammed bin Rashid Al Maktoum said the probe was named Hope, or al-Amal, because it sends a message of optimism to millions of young Arabs. The Arab world was invited to suggest names in April 2015, and Hope was announced as the winning name in May 2015.
According to Mohammad bin Abdullah Al Gergawi, the UAE's minister of cabinet affairs, the Emirates Mars Mission cost US$200 million.
Hope carries three instruments: the Emirates eXploration Imager (EXI), a multi-band camera; the Emirates Mars Infrared Spectrometer (EMIRS), which measures temperature and atmospheric composition; and the Emirates Mars Ultraviolet Spectrometer (EMUS), which studies the upper atmosphere. Together they study Martian weather, dust storms, and the loss of hydrogen and oxygen from the atmosphere.
Hope was assembled by Emirati and American engineers at the University of Colorado Boulder's Laboratory for Atmospheric and Space Physics. It launched from the Tanegashima Space Center in Japan on a Mitsubishi Heavy Industries H-IIA rocket on the 19th of July 2020.