spaceSpace and Physics

With 16 Sunsets A Day, How Do Muslim Astronauts Observe Ramadan In Space?

There are some guidelines for Muslim astronauts on how to perform religious practices when in orbit.


Dr. Alfredo Carpineti


Dr. Alfredo Carpineti

Senior Staff Writer & Space Correspondent

Alfredo (he/him) has a PhD in Astrophysics on galaxy evolution and a Master's in Quantum Fields and Fundamental Forces.

Senior Staff Writer & Space Correspondent

Astronaut Sultan Alneyadi from the Mohammed bin Rashid Space Centre, SpaceX Crew-6 Mission Specialist, is pictured in his pressure suit during a crew equipment integration test at SpaceX headquarters in Hawthorne, California.

Sultan Al Neyadi in his SpaceX Suit before launch. Image Credit: SpaceX

This week saw the beginning of Ramadan, the holy month for Muslims around the world – and even off-world. Emirati astronaut Sultan Al Neyadi is currently serving on the International Space Station (ISS) and this has had many people wondering if, and how, the astronaut will observe this important period in the Islamic calendar.

Ramadan is the ninth month of the Islamic calendar and is seen as a time of reflection, community, and prayer. It starts from the first sight of the crescent Moon to the next, as the Islamic calendar is a lunar calendar, so this year it will roughly last from March 22 to April 23.


During that time, adults fast from dawn until dusk in their location, but on the ISS there are 16 sunrises and sunsets every day, so that doesn’t work in orbit. Imagine fasting on the Moon, where the Sun stays in the sky for 14 days. 

The ISS, however, uses Universal Coordinated Time (UTC), so that is the time that Al Neyadi will follow for starting the fast.

There are dispensations if fasting could affect a person’s physical or mental health, as well as being pregnant or breastfeeding. Travelers can also be exempt, which Al Neyadi confirmed in a press conference in January is the category he falls under.

“Fasting is not compulsory if you’re feeling not well. So in that regard — anything that can jeopardize the mission or maybe put the crew member at risk — we’re actually allowed to eat sufficient food to prevent any escalation of lack of food or nutrition or hydration,” Al Neyadi explained.


Al Neyadi is part of Crew 6, together with NASA astronauts Stephen Bowen and Warren Hoburg and cosmonaut Andrey Fedyaev. He is the first Emirati astronaut on a long-duration mission on the ISS, where he will conduct 19 experiments on topics from back pain to plant biology and material science. The first Emirati astronaut, Hazza Al Mansouri, was on the ISS for almost eight days in 2019.

In his six months around Earth, Al Neyadi will also celebrate Eid al-Fitr, at the end of Ramadan, and Eid al-Adha, which will be celebrated in June/July. Al Neyadi mentioned that he’d be sharing some Emirati meals with his fellow astronauts.

There have been nine other Muslim men, other than Al Neyadi and Al Mansouri, that have traveled to space, the first being prince Sultan bin Salman Al Saud in 1985. However, there had been no public discussion of how Muslims were to worship in space until Sheikh Muszaphar Shukor, the first Malaysian astronaut, requested guidelines from Malaysia's National Fatwa Council.

These were important to establish, especially when it came to the Qibla – the direction toward which Muslims pray, facing the Kaaba in the Sacred Mosque in Mecca – kneeling during the prayer, and washing. In microgravity, the direction is left to the astronauts’ best ability at the start of the prayer, kneeling is not compulsory, and a wet towel will suffice.


Practicing religion in space is nothing new. The first Israeli astronaut, Ilan Ramon, observed the Sabbath when he was on board the tragic last flight of the Columbia Space Shuttle that broke up on reentry in 2003. Christmas is observed on the ISS and cosmonauts celebrate Orthodox Christmas, which takes place on January 7, as they still follow the Julian Calendar for religious celebrations. Buzz Aldrin, a Presbyterian, performed a communion service on the Moon. And for Catholics, the whole Moon is part of the dioceses of the Bishop of Orlando.  


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