Sunday, 25 October 2026

A Russian SLBM test in the Arctic

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click map to enlarge Navigational Warnings have appeared that point to a possible Russian Bulava SLBM test launch between Oct 25 and 31. O...
Saturday, 17 October 2026

[UPDATED] KOSMOS 2612 and ICEYE-X36: a worrisome cat-and-mouse-game in Space

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click diagram to enlarge   (update at end of post) A worrisome cat-and-mouse-game is happening in Space as we speak. The Russian military s...
Tuesday, 6 October 2026

A French SLBM test in the Atlantic

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Click map to enlarge (note: M53.1 should read: M51.3)   In the morning of 6 October 2026 , France conducted a test-launch of its Nuclear-cap...
Friday, 11 September 2026

RASSVET (2nd batch): Reports of my Death have been Highly Exaggerated

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  Russia is in the process of building a constellation of satellites in Low Earth Orbit for data connectivity, called RASSVET (Russian for...
Saturday, 1 August 2026

The reentry of Starlink-1541 over the northern Netherlands on 24 July 2026

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click map to enlarge On 24 July 2026 near 20:26 UTC (22:26 CEST), a defunct Starlink satellite, Starlink-1541, reentered over the North Sea...
Sunday, 26 April 2026

Imaging the oldest pieces of Space Debris still on orbit using the TU Delft MISO telescope

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  The Vanguard 1 upper stage (1958-002A). Click image to enlarge The Space Age started almost 69 years ago, with the launch of Sputnik 1. Ve...
Thursday, 9 April 2026

Tracking the Artemis II Lunar mission using TU Delft's MISO telescope

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Artemis II imaged with the TU Delft 41.5-cm MISO telescope on 8 April 2026  'track & stack' of 13 images on the Spacecraft movem...
Thursday, 5 March 2026

Guest in the Euronews podcast "Tech talks"

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  I recently was a guest in the Euronews podcast series Tech Talks , in an episode called " How to track a spy satellite ".  In ...
Tuesday, 3 March 2026

The observed reentry of the Chinese CZ-2C upper stage 2018-054D over Australia on 28 February 2026

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still from reentry movie. Click to enlarge. image (c) Robert H. McNaught, used with permission On 28 February 2026 near 18:40 UTC , a Chines...
Wednesday, 4 February 2026

Another failed deorbit of a Falcon 9 upper stage

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Falcon 9 upper stage. Image: SpaceX On 2 February 2026 , SpaceX launched Starlink 17-32 , with 25 new Starlink satellites, from Vandenberg S...
Saturday, 31 January 2026

[UPDATED] You Only Die Twice (redux): the unusual and confusing double reentry of a ZQ-3 upper stage (2025-282A)

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Click map to enlarge ( The title of this blogpost is inspired by a similar titled post from several years ago )  The uncontrolled reentry ...
Monday, 8 December 2025

NROL-77, probably a new NOSS (or maybe not)

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click map to enlarge On 9 December 2025 between 19:06 and 19:28 UTC, SpaceX will launch the classified mission NROL-77 for the NRO , from ...