Ramadan will be celebrated twice in 2030 due to the 33-year lunar cycle

Look up the date of any Islamic holiday going back to 622 CE

The US Naval Observatory's calculator converts Hijri calendar dates to Gregorian and vice versa, covering Islamic holidays from the first year of the Islamic calendar through the present. The resource helps show how much Ramadan's dates shift year over year and allows readers to find out when Ramadan would have fallen in a certain year.

Ramadan moon-sighting can spark intra-family disputes

Because different communities—and even different members of the same family—follow different methods for confirming the crescent, Ramadan doesn't always start on the same day for everyone. The result: "moon wars" that pit parents against children, and mosques against each other, on when exactly the fast begins.

Muslims fasting in Iceland face more than 20 hours of daylight during summer Ramadan

In countries near the Arctic Circle, Ramadan's rule of fasting from sunrise to sunset can cause some unique challenges for the extended periods of daylight in the region. Icelandic Muslims have developed pragmatic workarounds—some follow the hours of Mecca, others adjust locally. It's an edge case that illuminates how a 7th-century practice gets negotiated across radically different geographies.

Ramadan is a major television event in the Middle East

Each year, major networks air special 30-episode dramas timed to the month—one episode per night after iftar. Syrian productions long dominated the format, though that has shifted. The season is the advertising event of the year across the Middle East, rivaling the Super Bowl in commercial intensity.

UK's Royal Astronomers join the hunt for Ramadan's crescent moon

In Britain, Muslim communities and professional astronomers now collaborate to officially spot the moon that begins Ramadan, blending ancient practice with modern science. The partnership culminates in a live, unscripted annual broadcast even.

A 101 on why Ramadan is the holiest time of the Muslim year

As a spiritual guide for members of the Brandeis University community, this overview surfaces the highlights to orient readers on Ramadan logistics, practices, and obligations. It's a useful start for those interested in learning the basics around fasting rules, exemptions, the significance of iftar and suhoor, and common greetings.

Laylat al-Qadr: the single Islamic night 'holier than a thousand months'

Toward the end of Ramadan, Laylat al-Qadr is observed, recalling Muhammad's "night of power" when the Quran was first revealed, according to Islamic tradition. The Quran describes it as better than a thousand months of worship. Its exact date differs between Sunni and Shia adherents, falling on the 27th night of the month for Sunnis and the 23rd for Shias.

How lunisolar calendars work

Despite being called Lunar New Year, the Chinese calendar that the holiday is based on is actually lunisolar, or based on both the sun and the moon. Many religious holidays—including Easter, Ramadan, Chinese New Year, and Passover—do not have fixed dates according to the now-ubiquitous Gregorian calendar.

Nearly 70% of Muslim Americans always donate to charity during Ramadan

Zakat, one of the core pillars of Islam, directs Muslims to redistribute their wealth and give to the poor. This pillar is commonly honored during Ramadan and likely motivated by the practice of fasting, which encourages gratitude and compassion for those who are less fortunate. Other spikes in charitable giving are seen during the holiday of Eid al-Adha and at the end of the financial year.

Eid ul-Fitr vs. Eid ul-Adha: differentiating the two lesser and greater Eids

Most non-Muslims associated Eid with the end of Ramadan—but that's actually the lesser Eid. The greater one, Eid ul-Adha, comes 70 days later and commemorates Ibrahim's (Abraham) willingness to sacrifice his son. It involves Qurbani, the ritual slaughter of an animal, with meat distributed to those in need.

The Year 2038 problem is the next potential computer time rollover bug

Many older systems store time as a signed 32-bit integer counting seconds since Jan. 1, 1970. That counter maxes out on Jan. 19, 2038—overflowing into negative time and sending clocks back to 1901, potentially crashing any older software that depends on accurate dates.

The number of billionaires in Saudi Arabia is projected to increase by 183% by 2031

Countries in the Middle East and Asia are projected to have some of the largest economic expansions by 2031, including within their billionaire populations. The global average growth projection for billionaires is 26% between 2026 and 2031.

The moon is moving 3.8 centimeters farther away from Earth each year

Driven by tidal forces, the effect is minimal and slow, ensuring stable tidal patterns and lunar cycles. Earth's rotation slows down as the Moon gains orbital momentum, slowly lengthening the day over time.

Take a 3D tour of the Hajj, Islam's annual pilgrimage to Mecca, undertaken by over 1.5 million Muslims.

There may be 500,000 additional malaria deaths by 2050

Research published in the journal Nature in January 2026 estimates that by 2050, climate change may trigger more than half a million additional malaria deaths and over 100 million additional malaria cases. The work is based on climate change projections and available disease information and did not incorporate new vaccine uptake.

Social Security funding is mandated by law, not budgeted each year by Congress

Unless Congress acts before the Social Security trust fund becomes depleted in 2034, its current revenues would cover 81% of Social Security benefits. However, that share would decline to 72% by 2099.

The tournament in 2026 will have 48 teams

After 24 years of having a 32-team tournament, the FIFA World Cup will get an upgrade in 2026, expanding the field to make it the largest World Cup ever.

The Milky Way only has a 50-50 chance of merging with the Andromeda galaxy

Previously considered a near certainty, research data from Hubble and GAIA have reduced the likelihood of a collision and merger between the two galaxies. Instead, the data suggests the Milky Way will absorb the Large Magellanic Cloud, a dwarf galaxy, in the next two billion years.

Rare chance for US states to see Northern Lights

A solar storm in July 2023 offered people in 17 American states, as well as Canada, an unusual chance to witness the Northern Lights, or aurora borealis. The 11-year solar cycle, reaching its peak in 2024, made the lights visible in places further south than usual. Read up on the announcement from the Geophysical Institute at the University of Alaska at Fairbanks here.

In the US, 3.6 million babies were born in 2023

That year, about 40% of the babies were born to unmarried parents, and about 32% of the births were born via cesarean. On average, mothers were 27.5 years old when they had their first child.

View the docket of future SpaceX launches

SpaceX has established an efficient schedule for launches of ISS crew shuttles and Starlink satellites, with blastoffs occurring just under once every four days in 2023—a pace that has since accelerated as the company has won more contracts.

The 2023 lineup featured its first Spanish-language and K-pop headliners

As Coachella moves through its third decade, the festival is continuing to evolve, welcoming its first Spanish-language (Bad Bunny) and K-pop (Blackpink) headliners in 2023.

In 2024, the period between Thanksgiving and Cyber Monday saw 197 million shoppers

Some argue Black Friday has gone from one day of the year, to two days of the year, including Cyber Monday sales, to, more recently, an entire week. In recent years, companies have offered steep discounts for a week at a time rather than just one or two days.

What’s the outlook for CD rates in 2025?

The federal funds rate can have a big impact on CD interest rates. That means it also affects the amount of money any given CD can earn you. To learn more about how CD rates will look in 2025, and how recent rate cuts correlate to that, read this article.

A credit card’s grace period is a minimum of 21 days

Under federal law in the United States, an individual’s credit card payment due date must fall on the same day of each month, at least 21 days after the cardholder’s statement closing date.

Republicans launched a mid-decade redistricting push in 2025

Beginning in Texas, Republican-controlled legislatures in Missouri, Florida, Ohio, and North Carolina moved to redraw maps before 2030—an uncommon mid-decade effort aimed at securing additional congressional seats.

For centuries, it was common to sleep in two shifts: a few hours at the beginning of the night, and a longer period beginning around midnight

Electrical grids worldwide must double their power delivery capacity by 2050 to meet surging demand from AI and electric vehicles.

Visualize the path of every solar eclipse from 1900 to 2099 and see what each looks like when observed from different locations on Earth.

11 people died from firework injuries in the US in 2024.

US housing costs have risen by roughly 175% between 1991 and 2026—but a growing number of Gen Zers are becoming homeowners anyway. In 2025, 4% of homebuyers were Gen Z, up from 3% the year before.

While El Niño moves warm Pacific Ocean waters east along the equator, La Niña moves them west, shifting where rainfall will become more common for months.

The term 'algorithm' originated from the Latinized name of al-Khwārizmī, a 9th-century mathematician whose works introduced Arabic numerals and the decimal-based numeral system to Europe and whose treatise 'Al-Jabr' gave algebra its name.

The hormonal disorder PCOS was renamed PMOS in 2026, a move designed to improve care and research by shifting the focus to the hormonal causes of this condition that affects 1 in 8 women.

In 2026, Finland was named the world's happiest country for the ninth consecutive year based on its wealth, social safety network, and high life expectancy, among other factors.

The 2026 Ebola outbreak in the DRC is spurring new Ebola vaccine development for the Bundibugyo species.

Iran's Revolutionary Guard Corps is independent of Iran's regular army and is one of the most powerful and influential military-political organizations in the Middle East.

Some coin denominations have ridges etched on their sides, partly to prevent counterfeiting, in a practice called 'reeding.'

In 1963, a basement renovation in Turkey revealed a passageway to a hidden, multilevel underground city that once housed as many as 20,000 people

Apeirophobia is an overwhelming fear of living forever, perhaps stemming from the brain's inability to conceptualize an infinite life.

The US Constitution is widely regarded as the longest-standing written national constitution still in force—see how it has influenced rights worldwide.

Planarian flatworms are small, aquatic worms with exceptional regenerative capabilities. When cut, the worms can regenerate multiple bodies in a matter of weeks.

Use this tool to calculate the dollar value of your parental mental load, from meal planning to coordinating after-school care, then see resources that help generate solutions.

Poison ivy can cause rashes year-round since all parts of the plant contain urushiol, the oil that triggers our allergic response.

According to the physics of black holes, our 4D reality may be a hologram—a projection of information coded on a 2D surface on the edge of the universe.

In preparation for this weekend's Eurovision finale, which is something like the World Cup of pop music, here's a young Céline Dion performing (for Switzerland?) at the 1988 competition.

The American cockroach is actually from Africa, an apparent hitchhiker aboard ships carrying enslaved people, with evidence suggesting the bug may have arrived in the New World as early as the 1600s.

SpaceX's S-1 or 'prospectus' revealed many previously unknown details about the company, including its unprofitability despite doing $18.7B in revenue in 2025, exactly how many voting shares Elon Musk will have in the company (roughly 85%), and more.

In 1939, baseball star Lou Gehrig delivered his inspirational 'Luckiest Man' speech after retiring due to the health condition that now bears his name.

In 2018, 26-year-old missionary John Allen Chau was killed by tribesmen after attempting to reach and evangelize on India's isolated North Sentinel Island