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From Sputnik to a crowded sky

Every recorded launch year since the first artificial satellite, today's orbit and a transparent what-if for the next decade.

16,000functioning satellites
0116,000functioning satellites
0218,840satellites still in orbit
0346,420tracked objects
04> 17,000tonnes in orbit

01 · 1957—2025

The space age, from its first year

On 4 October 1957, the Soviet Union launched Sputnik 1—the first artificial Earth satellite. The chart starts there and counts registered objects launched into outer space, not only active satellites.

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1957 · Sputnik 11970199020102025
Year2025Objects launched4,510

02 · Period

The acceleration by period

Hover a bar for an individual year or compare periods in the table. The first and last periods are partial, with their exact dates shown.

1957—195924
1960—19691,056
1970—19791,428
1980—19891,468
1990—19991,311
2000—2009977
2010—20192,772
2020—202515,829

03 · 2026—2035

What if the 2025 launch rate continued?

Choose a simple rate scenario. This is arithmetic for scale—not a forecast of launches, failures or re-entry.

04 · What these numbers mean

What these numbers mean

A launched object may later re-enter, stop working or fragment. That is why total launched, still in orbit, functioning satellites and tracked objects are different figures.

Sources and limits

Historical launches: Our World in Data, adapted from UNOOSA registrations (estimated coverage about 88%).

Our World in Data ↗

Current environment: ESA DISCOS statistics, rounded figures updated 31 July 2026.

ESA DISCOS ↗