Stars and StripesAssociated Press

Russia launches three Iranian communications satellites into orbit

Russia on Sunday launched three Iranian communications satellites into orbit, Tehran said — the second Russia-assisted launch since July, Iranian state media reported. Iran insisted the programme is peaceful and complies with UN Security Council resolutions, though the move has drawn international scrutiny.

Universe TodayAndy Tomaswick

Design-for-Demise Dilemma: Unintended Consequences of Smallsat End-of-Life Practices

By Universe Today: At the end of their lives, most satellites fall to their death. Many of the smaller ones, including most of those going up as part of the “mega-constellations” currently under construction, are intended to burn up in the atmosphere.

2025-12-28T07:44:42.241739-08:00
Space.comKeith Cooper

The top astronomical discoveries of 2025

By Space.com: From new exoplanetary neighbors and a weakening dark energy to the best evidence for life on Mars and an interstellar comet that's got everyone talking, 2025 has been jam-packed with astronomical excitement and revelation.

2025-12-28T03:03:10.434535-08:00
Spaceflight NowWill Robinson-Smith

SpaceX to launch Italy’s Cosmo‑SkyMed Second Generation FM3 from Vandenberg in final Falcon 9 mission of 2025

By Spaceflight Now: ![](http://spaceflightnow.com/wp-content/uploads/2025/12/20251226_COSMO-SkyMed_SG_FM3.jpeg) Update Dec. 27, 5:56 p.m. EST (2256 UTC): SpaceX scrubbed the launch due to a ground issue, targeting Sunday, Dec.

2025-12-27T06:00:25.663470-08:00
Universe TodayAndy Tomaswick

Kirigami-enabled Solar Sails: Using Structural Cuts to Control and Turn Sailcraft

By Universe Today: Solar sails have some major advantages over traditional propulsion methods - most notably they don’t use any propellant. But, how exactly do they turn? In traditional sailing, a ship’s captain can simply adjust the angle of the sail itself to catch the wind at a different angle.

2025-12-27T03:54:23.461136-08:00