Who owns all the satellites?

More than 4,000 satellites orbit Earth, and that number will grow by leaps and bounds in just a few years. Who owns all those satellites orbiting Earth?

1st US satellite – Explorer 1 – launched 64 years ago this week

On January 31, 1958, the United States launched its 1st satellite, Explorer 1. The satellite led to the discovery of the Van Allen radiation belts.

Sweden went 1st in banning aerosol sprays on January 23, 1978

Sweden 1st to ban aerosol sprays on this date in 1978. They were propelled by chlorofluorocarbons (CFCs), which harmed Earth's ozone layer.

Shackleton expedition to magnetic south pole

On January 16, 1909, a team of Antarctic explorers thought they'd found the magnetic south pole. The magnetic south and north poles wander every year.

No leap second for December 31, 2021

World timekeepers have decreed there will be no leap second on December 31, 2021. Overall the spin of Earth is slowing down, but in 2020 it sped up.

‘We love it.’ Webb in arts and crafts

People kept busy while anticipating the James Webb Space Telescope launch by creating a huge array of inspiring arts and crafts.

La Palma volcano has been erupting for 2 months

The La Palma volcano - which began on September 19, 2021 - has now been erupting for 2 months. It has claimed one life and forced thousands to evacuate.

Virtual reality can combat isolation on Earth and in space

Virtual reality may help alleviate some of the negative feelings of isolation, and this has potential implications for space travel.

Kessler syndrome of colliding satellites could make low-Earth orbit unusable

Space debris threatens ISS: the Kessler syndrome, a theory developed by NASA scientist Donald Kessler, predicts cascading collisions in orbit.

Permafrost thaw in the Arctic, in the next 30 years

Permafrost thaw in the Arctic is as one of the most immediate problems of global warming. A new assessment of communities at risk.