space

No, our galaxy is not inside a black hole. The Milky Way contains a central supermassive black hole called Sagittarius A*, but the galaxy itself is a vast system of stars, gas,...

This article explains what an alien earth is, why the term matters, and how scientists search for and study Earth-like worlds beyond our Solar System. It covers detection method...

The far side of the moon is the hemisphere that always faces away from Earth, hidden by the Moon’s synchronous rotation. It is sometimes called the dark side, though this term...

No human has died on the Moon during crewed or uncrewed operations at the lunar surface. All crewed NASA Apollo landings returned safely, and no spacecraft operated by any natio...

K2-18b is approximately 124 light-years from Earth, or about 1.2 × 10^6 Astronomical Units (AU), and roughly 38 parsecs. These figures round to about 730 trillion miles (1.17 q...

Women astronauts have become central to human space exploration, serving as mission specialists, pilots, commanders, and scientists aboard international programs. This overview...

When an asteroid to fly by Earth makes headlines, it can feel distant or abstract. In clear terms, this phrase describes any near-Earth object that passes within the Moon’s or...

An all-woman space flight is a crewed space mission in which every astronaut or crew member is female. Such flights advance research on performance in space across diverse physi...

When astronomers refer to studying an astronomer life on a distant planet, they describe a multi-step scientific process that moves from detection to characterization and, event...

The September 2024 eclipse was a partial lunar eclipse that occurred on Thursday, 18 September 2024, visible across much of the Americas, Europe, Africa, and eastern Asia. It wa...

A supermoon occurs when a full or new moon coincides with perigee, the point in the Moon’s orbit closest to Earth. The result is a slightly larger and brighter appearance, typ...

The Moon is Earth’s closest neighbor and moves about 12 to 15 degrees across the sky each day, passing near different planets on successive nights. Because the Moon reflects s...

A solar eclipse occurs when the Moon passes between the Sun and Earth, temporarily blocking some or all of the Sun’s light. There are three main types: total, partial, and ann...

SpaceX government contracts in 2025 combine long-standing NASA transportation partnerships with expanded Department of Defense and national security missions, covering crewed an...

The topic of an Elon Musk flight to Mars centers on SpaceX’s long-term goal to enable passenger missions to the Red Planet using Starship. This is not a near-term commercial f...

As Blue Origin advances suborbital tourism and research flights, female astronauts have played a prominent role since early developmental flights. This guide profiles each woman...

A solar eclipse occurs when the Moon passes between the Sun and Earth, briefly blocking part or all of the Sun’s light. There are three main types: total, in which the Moon fu...

Water ice is present in permanently shadowed polar craters, and trace water molecules are locked in lunar soils away from the poles. The existence of surface-bound water was con...

William Shatner flew to space on 13 October 2021 as a space tourist aboard Blue Origin’s NS-18 mission. At 90 years old, he became the oldest person to reach the Kármán line...

SpaceX rescued astronauts by using the Crew Dragon spacecraft’s integrated launch abort system, coordinated with NASA’s Commercial Crew program, and executing controlled oce...

To date, we have not confirmed life on any planet beyond Earth. The phrase another planet that has life usually refers to hypothetical organisms—most likely microbial—on an...

Tom Cruise’s association with the International Space Station (ISS) emerged from a 2020 announcement that the actor and his production team would film on orbit. This move was...

Interest in celebrities going to space has grown as private orbital and suborbital flights become reality rather than science fiction. These flights blend public outreach with c...

This evergreen profile examines female leadership and participation in space missions, covering roles from commander to mission specialist, program milestones, verified records,...