Space

The universe beyond Earth — from our solar system to the edge of the cosmos.

All Solar System Stars & Galaxies Cosmology Space Exploration Astrophysics

Space Solar System

A day on Venus is longer than its year, by one measure

100 sec read

Space Stars & Galaxies

If Betelgeuse replaced the Sun, it would swallow Mars

90 sec read

Space Astrophysics

Time runs slower near a black hole, and we've measured it

90 sec read

Space Cosmology

The CMB was found by accident in 1964 — and missed in 1941

90 sec read

Space Cosmology

Distant galaxies recede faster than light — and we see them

95 sec read

Space Solar System

Enceladus's geysers spray a hidden ocean into space

95 sec read

Space Astrophysics

Are we made of stardust? Mostly, but not all of it

95 sec read

Space Astrophysics

The fastest-spinning star known turns 716 times a second

95 sec read

Space Astrophysics

Gravitational waves were first detected on 14 September 2015

90 sec read

Space Space Exploration

The Hubble Deep Field found 3,000 galaxies in "empty" sky

95 sec read

Space Space Exploration

Humans have lived in space nonstop since November 2000

80 sec read

Space Solar System

Jupiter's Great Red Spot: a shrinking storm seen since 1831

95 sec read

Space Solar System

The Sun and Jupiter orbit a point outside the Sun

90 sec read

Space Solar System

Mercury is shrinking, and its radius has lost up to 7 km

100 sec read

Space Stars & Galaxies

Will Andromeda hit the Milky Way? The odds are now 50-50

90 sec read

Space Astrophysics

A neutron-star teaspoon weighs millions to billions of tons

90 sec read

Space Astrophysics

Nothing escapes a black hole's event horizon, not even light

90 sec read

Space Cosmology

Why the observable universe is 93 billion light-years wide

90 sec read

Space Solar System

Olympus Mons is about 22 km tall, 2.5 times Everest

95 sec read

Space Cosmology

Ordinary matter is only 5% of the universe — mostly unseen

85 sec read

Space Space Exploration

Parker Solar Probe: fastest object ever built, at 430,000 mph

80 sec read

Space Stars & Galaxies

Red dwarfs are about 75% of stars, yet none is visible by eye

85 sec read

Space Solar System

Saturn is less dense than water, but it wouldn't float

90 sec read

Space Space Exploration

Sojourner, the first Mars rover, drove only 330 feet

75 sec read

Space Stars & Galaxies

The Sun's core is 15 million °C and fuses by quantum tunnelling

85 sec read

Space Astrophysics

Sunlight's energy takes about 170,000 years to leave the Sun

95 sec read

Space Cosmology

The universe has no center: the Big Bang happened everywhere

100 sec read

Space Stars & Galaxies

Earth's 3 trillion trees likely outnumber Milky Way stars

95 sec read

Space Stars & Galaxies

Most stars have a partner, but most star systems are single

85 sec read

Space Cosmology

The universe's expansion is speeding up, not slowing down

95 sec read

Space Cosmology

The universe is 13.8 billion years old, to within 0.3%

90 sec read

Space Solar System

Venus is hotter than Mercury, though farther from the Sun

85 sec read

Space Solar System

Venus spins backwards, so the Sun rises in the west

100 sec read

Space Space Exploration

Voyager 1 left the heliosphere in 2012, not the solar system

90 sec read

Space Solar System

Vulcan: the planet inside Mercury's orbit that never existed

100 sec read

Space Solar System

Chaucer dated his rooster tale to 3 May by the Sun

90 sec read

Space Solar System

What happened when Earth passed through Halley's tail in 1910

95 sec read

Space Stars & Galaxies

Porphyrion: the largest black hole jets, 140 Milky Ways long

85 sec read

Space Stars & Galaxies

HD 189733b, the blue planet where it rains glass sideways

85 sec read

Space Solar System

Does it rain diamonds on Neptune and Uranus? Probably

95 sec read

Space Space Exploration

Gherman Titov was the first person to sleep in space

85 sec read

◆ On this day

On this day in Space

Browse all 134 by date →

21 Jul 1969

Space Space Exploration

Armstrong's 1969 Moon step and the still-missing 'a'

90 sec read

1 Jan 1801

Space Solar System

Ceres: the first asteroid, found on New Year's Day 1801

95 sec read

2 Jan 1959

Space Space Exploration

Luna 1 missed the Moon in 1959 and orbited the Sun instead

80 sec read

5 Jan 1972

Space Space Exploration

Nixon's 1972 Space Shuttle promised cheap, routine spaceflight

85 sec read

7 Jan 1610

Space Solar System

Galileo found Jupiter's four big moons in January 1610

95 sec read

14 Jan 2005

Space Space Exploration

Huygens is still the only landing in the outer solar system

90 sec read

16 Jan 1969

Space Space Exploration

Soyuz 4 and 5 made the first docking of two crewed ships

95 sec read

31 Jan 1958

Space Space Exploration

How Explorer 1 helped discover the Van Allen radiation belts

90 sec read

31 Jan 1961

Space Space Exploration

Ham the chimpanzee flew to space before any US astronaut

90 sec read

3 Feb 1966

Space Space Exploration

Luna 9 proved the Moon wasn't a sea of dust in 1966

85 sec read

6 Feb 1971

Space Space Exploration

Alan Shepard's Moon golf shots went 24 and 40 yards

90 sec read

8 Feb 1969

Space Solar System

The Allende meteorite holds the solar system's oldest solids

95 sec read