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Medium
November 24th
Questions
What is the term for the boundary in our Solar System where the Sun's solar wind slows down and merges with the interstellar medium?
Which planet is associated with the fastest wind speeds in the Solar System?
What is the name of the first spacecraft to successfully conduct a flyby of Pluto?
Which star is the closest to Earth after the Sun?
What is the name of the phenomenon where two neutron stars merge, producing gravitational waves and heavy elements like gold?
Medium
November 8th
Questions
Which planet in our solar system has the most extensive and complex ring system?
What is the term for the dark, flat plains on the Moon's surface, formed by ancient volcanic eruptions?
What is the name of the point in a star's life cycle when it fuses helium into heavier elements?
Which planet is known for having the Great Dark Spot, a massive storm similar to Jupiter's Great Red Spot?
What is the term for the region around a star where conditions may be just right for liquid water to exist on a planet's surface?
Medium
September 28th
Questions
What is the name of the galaxy that is predicted to collide with the Milky Way in approximately 4.5 billion years?
What is the term for the point in a star's life cycle when it expands to many times its original size before shedding its outer layers?
Which planet in our Solar System has a day longer than its year due to its slow rotation and fast orbit?
What is the name of the belt of asteroids located between the orbits of Mars and Jupiter?
What is the name of the phenomenon where a star emits a sudden and intense burst of energy, often increasing its brightness dramatically?
Medium
September 28th
Questions
Which planet in our solar system is known for its extreme tilt of approximately 98 degrees, causing it to essentially roll on its side as it orbits the Sun?
What is the term for a sudden and intense burst of radiation originating from the Sun, which can disrupt Earth's communication systems?
What is the name of the largest volcano in the solar system, located on Mars?
What is the term for the phenomenon where light from distant stars is bent around a massive object, such as a galaxy cluster, due to the object's gravitational field?
What is the name of the theoretical boundary in the universe beyond which events cannot affect an observer on Earth?
Medium
September 6th
Questions
What is the name of the second-largest planet in our solar system known for its prominent ring system?
What is the term for the apparent brightness of a star as seen from Earth, regardless of its actual luminosity?
Which planet in our solar system has the highest average surface temperature due to its thick carbon dioxide atmosphere?
What is the term for the region of space where a star's gravity is strong enough to prevent anything, including light, from escaping?
What is the name of the point in an orbit where a planet or other celestial body is closest to the Sun?
Medium
August 28th
Questions
What is the name of the closest dwarf planet to the Sun?
What is the term for the apparent motion of stars caused by Earth's rotation, visible in long-exposure photographs?
Which moon of Jupiter is believed to have a subsurface ocean beneath its icy crust?
What is the name of the phenomenon where a planet passes in front of its star as seen from Earth, causing a temporary dimming of the star's light?
What is the name of the process by which heavy elements are formed in the cores of massive stars?
Medium
March 22nd
Questions
What is the name of the region beyond Neptune that contains many icy bodies and dwarf planets?
Which planet in our solar system has the fastest rotation on its axis?
What is the term for the apparent backward motion of a planet as observed from Earth due to the difference in orbital speeds?
What is the largest type of star by volume known to exist in the universe?
What term describes the boundary of the Solar System where the Sun's solar wind is stopped by the interstellar medium?
Medium
December 27th
Questions
What is the name of the largest volcano in the solar system, located on Mars?
Which planet in the solar system has the most moons?
What is the term for the boundary around a black hole beyond which no light or matter can escape?
Which star is the closest to Earth after the Sun?
What is the name of the galaxy that is on a collision course with the Milky Way?
Medium
September 21st
Questions
Which planet in our solar system has the most moons as of 2021?
What is the name of the boundary around a black hole beyond which no light or other radiation can escape?
Which planet's axis of rotation is tilted sideways, making it rotate almost perpendicular to its orbit?
What is the term for a rocky object in space that is smaller than a planet but orbits the Sun?
Which type of galaxy is characterized by its distinct spiral arms?
Hard
May 27th
Questions
What is the name of the largest moon of Saturn?
Which star system is known as the closest to our solar system?
What is the phenomenon where light or other electromagnetic radiation from an object is increased in wavelength, causing a shift towards the red end of the spectrum?
What is the term for the explosive death of a massive star, resulting in a bright burst of radiation that can outshine an entire galaxy for a short period?
Which planet in our solar system is known for its prominent ring system?
Hard
January 18th
Questions
What is the name of the region surrounding a black hole from which nothing, not even light, can escape?
What is the name of the hypothetical region in space where gravity is so strong that nothing, not even light, can escape?
What is the term used to describe the point in the sky directly above an observer on Earth?
What is the name of the process by which a star generates energy through the fusion of hydrogen into helium in its core?
What is the name of the point in an orbit where a satellite is farthest from the celestial body it is orbiting?
Hard
January 16th
Questions
What is the name of the first artificial satellite to be placed in orbit, launched by the Soviet Union in 1957, marking the beginning of the space age?
What is the name of the phenomenon in which a celestial body passes in front of another, as observed from a third body, causing the foreground body to block out some or all of the background body's light?
What is the name of the largest known moon in the solar system, which orbits the planet Saturn?
What is the name of the first man-made object to reach the surface of Venus, sent by the Soviet Union in 1970?
What is the name of the phenomenon where a star undergoes a sudden increase in brightness, typically due to the collision of two stars or the explosion of a white dwarf in a binary star system?
Hard
January 9th
Questions
What is the name of the largest known star by radius in the universe?
What is the name of the first exoplanet to be discovered using the radial velocity method, announced in 1995?
What is the name of the first spacecraft to successfully land on the surface of Mars, sent by the United States in 1976?
What is the name of the phenomenon in which matter and light are drawn into a black hole's event horizon, beyond which no information or signals can escape?
What is the name of the telescope launched in 2009 to observe and study the most distant galaxies in the universe?
Hard
January 9th
Questions
What is the name of the first black hole to be directly imaged by the Event Horizon Telescope in 2019?
What is the name of the first exoplanet to be directly imaged and confirmed orbiting a sun-like star in 2008?
What is the name of the largest known asteroid in the asteroid belt between Mars and Jupiter?
What is the name of the spacecraft that made the first successful flyby of the planet Jupiter in 1973, providing valuable data and images of the Jovian system?
Hard
January 9th
Questions
What is the name of the first observed pulsar, a highly magnetized, rotating neutron star that emits beams of electromagnetic radiation?
What is the name of the theory that suggests the universe underwent a rapid and exponential expansion, and has been expanding ever since?
What is the name of the first exoplanet to be discovered orbiting a main-sequence star, announced in 1995 by Michel Mayor and Didier Queloz?
What is the name of the event, observed in 2019, that provided the first-ever image of a black hole, located in the center of the galaxy M87?
What is the name of the spacecraft that made the first successful flyby of the planet Uranus in 1986, providing valuable data and images of its atmosphere and moons?
Hard
January 9th
Questions
What is the name of the first man-made object to reach escape velocity from Earth, launched in 1957, marking the beginning of the space age?
What is the name of the spacecraft that made the first successful flyby of the planet Venus in 1962?
In 2015, NASA's New Horizons spacecraft made the first flyby of which dwarf planet in the Kuiper Belt, providing valuable data and images of its surface?
What is the name of the first man-made object to reach the surface of Mars, sent by the Soviet Union in 1971?
What is the name of the observatory launched by NASA in 1990, which has provided invaluable data and images in the field of astronomy and astrophysics?
Hard
January 3rd
Questions
What is the name of the first satellite to be placed in orbit around the planet Mars, launched by the Soviet Union in 1962?
What is the name of the largest known moon in the solar system, which orbits the planet Jupiter?
Which space telescope, launched in 1990, has provided astronomers with a wealth of valuable data and images, contributing significantly to our understanding of the universe?
What is the name of the first spacecraft to successfully land on the surface of Venus, sent by the Soviet Union in 1970?
What is the name of the largest known asteroid in the asteroid belt between Mars and Jupiter?
Hard
January 3rd
Questions
What is the name of the phenomenon where a star collapses under its own gravity and becomes extremely dense?
What is the name of the galaxy that contains our solar system?
What is the name of the largest known star in the universe?
Which interstellar cloud of gas and dust is a stellar nursery, where new stars are born?
What is the name of the planet with the highest average surface temperature in our solar system?
Hard
January 3rd
Questions
What is the name of the largest known galaxy in the universe?
What is the name of the phenomenon where a massive star explodes in a brilliant burst of light?
What is the name of the largest volcano in our solar system?
What is the name of the largest known asteroid in our solar system?
What is the name of the nearest spiral galaxy to our Milky Way?
Hard
January 3rd
Questions
Which interstellar cloud of gas and dust is a stellar nursery, where new stars are born?
What is the name for the point in a planet's orbit where it is farthest from the Sun?
Which type of celestial object is known for emitting intense bursts of radiation, often associated with the formation of black holes?
What is the name of the theory that suggests the universe originated from a single, incredibly dense point, and has been expanding ever since?
Which planet in our solar system is known for its prominent rings made of ice particles and dust?
