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Today is: April 27
Scroll to explore events active on this date.
For the current year, this category includes: 3160 events.
Category: Science & Mathematics
Highlighting global events relating to the sciences and mathematics.
Science and math is a heavy-duty category covering a lot of ground. It focuses on the sciences, including but not limited to astronomy, biology, chemistry, physics, geography, anthropology, engineering, and mathematics.
Science & Math Events
Loomis Day: May 30
Daily
Dr. Mahlon Loomis (July 21, 1826 – October 13, 1886) was an American inventor and dentist who tapped into wireless technology with his inventions. Based on the first known wireless aerial communication in...
January
Moon—First Quarter: May 4
Daily
The first quarter moon occurs when the moon is one-half illuminated by the sun. Each day forward increases the amount of the moon you can see. The first quarter typically occurs seven days after the New M...
January
Moon—Full: May 12
Daily
A full moon occurs when the moon is illuminated by the sun and on the opposite side of the earth. Its ecliptic longitude is 180 degrees. For centuries, people have applied names to full moons to track th...
January
Moon—New: May 27
Daily
The new moon occurs when the moon and the sun have the same elliptical longitude when the moon is at its closest point to the sun in its orbit. From earth, we usually cannot see it. The new moon is consid...
January
Moon—Third Quarter: May 20
Daily
Today is the third quarter of the moon, meaning it is halfway between the full moon and the new moon.
January
Public Science Day, Ntl.(CN): May 17-18 (e...
Daily
Howdy! We're working on the description for this event. It's one of over two thousand events added to the calendar this year. We have verified it is an authentic event and have included the organization...
January
Sally Ride Day (1951): May 26
Daily
On May 26, Americans celebrated the birth of Sally Ride, a female astronaut with NASA and the first woman to fly in space. Sally Ride was an esteemed NASA Astronaut born in 1951 in Los Angeles, Californ...
January
Space Day: May 3
Daily
INSPIRING THE NEXT GENERATION OF SPACE EXPLORATION: NATIONAL SPACE DAY Space Day celebrates the achievements of Earth's space exploration programs and raises awareness of the program's benefits and oppor...
January
Weights and Measures Day, Intl. (1875): Ma...
Daily
May 20, 1875, is the day the world signed a treaty establishing the International Bureau of Weights and Measures, which maintains the International System of Units under the terms of the Metre Convention.
January
Andromeda Viewing Week, Worldwide: Novembe...
Weekly
The Andromeda Galaxy, or M31, is a spiral galaxy approximately 2.537 million light-years from Earth. It's the nearest spiral galaxy to our Milky Way and is on a collision course with it in about 4 billion...
January
Antimicrobial Resistance Awareness Week, W...
Weekly
IT'S ABOUT YOUR HEALTH! WORLD ANTIMICROBIAL RESISTANCE WEEK World Antimicrobial Resistance Awareness Week (WAAW) is a global campaign led by the World Health Organization (WHO) to raise awareness about a...
January
Biologic Coordinators Day, Ntl: November 1
Daily
Biologic Coordinators Day, initiated in 2021 by Johnson & Johnson Innovative Medicine, recognizes and celebrates the critical role of biologic coordinators in healthcare. It acknowledges the dedication an...
January
Biosphere Reserves, International Day for:...
Daily
UNESCO's International Day for Biosphere Reserves recognizes and promotes the importance of Biosphere Reserves worldwide. These reserves, part of UNESCO's Man and the Biosphere (MAB) Programme, are partic...
January
Fibonacci Day, Intl.: November 23
Daily
International Fibonacci Day honors one of the most influential mathematicians, Leonardo Bigollo. Bigollo, also known as Leonardo Bonacci, Leonardo of Pisa, and Leonardo Fibonacci, was born in Pisa, Italy,...
January
Geography Awareness Week, Ntl.: November 1...
Weekly
National Geography Awareness Week celebrates geography, cartography (maps), and the natural world. The week was established in 1987 through a presidential proclamation and continues annually during the th...
January
GIS (Geographic Information Systems) Day:...
Daily
Education Support Professionals Day is observed during American Education Week on Wednesday and honors the school system's employees. To show appreciation, students give thanks, gifts, or flowers to schoo...
January
Look for Circles Day: November 2
Daily
For teachers and parents, Look for Circles Day is an excellent opportunity to teach elementary-aged children about geometry and how basic shapes populate our lives. Stop what you’re doing right this mom...
January
Marooned Without A Compass Day: November 6
Daily
Marooned without a Compass Day is devoted to the unfortunate souls stranded on a lonely island. Isolated without a knife, tools, and matches seems worse, as navigation is possible with the sun, moon, and...
January
Medical Physics, Intl. Day of (1867): Nove...
Daily
The International Day of Medical Physics (IDMP), celebrated annually, is an initiative of the International Organization for Medical Physics (IOMP) to highlight the significant contributions of medical ph...
January
Medical Science Liaison (MSL) Awareness an...
Daily
Helping doctors and patients navigate the complexities of pharmaceuticals, medical devices, and biotechnology, Medical Science Liaisons (MSL) help ensure the right tool is used to keep you healthy. Nation...
January
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