The object was first spotted when leaving the motorway at Cossonay by car. The object was hovering in what seemed like circles. The two witnesses were first surprised by the sheer size of the object (pretty big considering the distance) and the fact that it could change both direction and color (from black [20% of the time] to reflective)The object was followed for about 30 minutes from Cossonay to Vufflens-la-Ville. When we left Vufflens-la-Ville, the object could not be found any longer in a 5 min timespan, at which point we stopped looking for it.
Top 100 nearest sightings ordered by sighting date (100 miles radius):
| Location | Sighted on | Shape | Duration |
|---|---|---|---|
| Location | Sighted on | Shape | Duration |
| Bonnevaux, Auvergne-Rhône-Alpes (France) | 2020-02-24 | Sphere | 03:00:00 |
| Murten, Canton of Bern (Switzerland) | 2019-12-10 | Circle | 04:00:00 |
| Epagny Metz-Tessy, Auvergne-Rhône-Alpes (France) | 2019-11-11 | Other | 00:01:00 |
| 25270 | 2019-11-10 | triangle plane shape | slow |
| 25270 | 2019-11-08 | triangle plane shape like A | 60 seconds |
| Bière, Vaud (Switzerland) | 2019-08-07 | Tic Tac | 00:04:00 |
| Givisiez, Fribourg (Switzerland) | 2019-04-21 | Star-like | 00:00:40 |
| Les Contamines-Montjoie, Auvergne-Rhône-Alpes (France) | 2019-03-03 | Circle | 00:03:06 |
| Geneva, Geneva (Switzerland) | 2018-10-06 | Cylinder | 00:00:02 |
| Sciez-sur-leman, Auvergne-Rhône-Alpes (France) | 2018-09-08 | Triangle | 00:30:00 |
| Lyaud, Auvergne-Rhône-Alpes (France) | 2018-06-21 | Sphere | |
| Amancy, Auvergne-Rhône-Alpes (France) | 2018-05-20 | Unknown | 00:05:00 |
| Leysin, Vaud (Switzerland) | 2017-08-07 | Disc | |
| Annecy, France | 2017-07-19 | Egg shape with ''folded'' wings | Seen on my phone pictures |
| Nyon, Vaud (Switzerland) | 2017-03-31 | Unknown | 01:00:00 |
| Bonne, Auvergne-Rhône-Alpes (France) | 2017-02-26 | Sphere | |
| Lancy, Genève (Switzerland) | 2016-10-12 | Disc | 00:00:30 |
| Sion, Valais (Switzerland) | 2016-08-08 | Star-like | 00:15:00 |
| Geneva, Geneva (Switzerland) | 2016-07-17 | Disc | Undisclosed |
| Marnay, Bourgogne Franche-Comté (France) | 2016-06-03 | Oval | Undisclosed |
| Burgdorf, Canton of Bern (Switzerland) | 2016-03-05 | Saturn-like | Undisclosed |
| Spiez, Bern (Switzerland) | 2015-12-23 | Star-like | Undisclosed |
| Lausanne, Vaud (Switzerland) | 2015-07-21 | Disc | Undisclosed |
| Mühleberg, Bern (Switzerland) | 2015-07-17 | Sphere | 00:30:00 |
| Geneva (Switzerland) | 2015-07-04 | fireball | 20 seconds |
| Spitalzentrum Biel-Bienne (Switzerland) | 2014-10-15 | Triangular | 15 Minutes |
| Geneva, Geneva (Switzerland) | 2014-09-22 | Star-like | Undisclosed |
| Cugy (Switzerland) | 2014-08-17 | Fireball | 20 seconds |
| Cugy (Switzerland) | 2014-08-17 | Fireball | 20 seconds |
| Schliern (Switzerland) | 2014-03-31 | Ellipse | 5 seconds |
| Biel (Switzerland) | 2013-08-15 | Sphere | 5 seconds |
| Lausanne, Vaud (Switzerland) | 2013-08-13 | Triangle | Undisclosed |
| Chamonix, Rhone-Alpes (France) | 2013-07-08 | Disc | Undisclosed |
| Estavayer-le-Lac, Canton of Fribourg (Switzerland) | 2013-06-05 | Circle, Sphere | 00:00:35 |
| Dole, Franche-Comté (France) | 2013-05-15 | Triangle | Undisclosed |
| Annecy (France) | 2012-12-26 | Diamond | seconds |
| Neuchâtel | 2012-10-10 | Triangle | 5 minutes |
| Geneva (Switzerland) | 2012-08-01 | Light | 1 minute |
| Geneva (Switzerland) | 2012-08-01 | Light | 1 minute |
| Morillon (France) | 2011-07-14 | Light | 00:15 |
| Neuchâtel, Neuchâtel (Switzerland) | 2011-02-28 | Triangle | 00:00:20 |
| Geneva, Geneva (Switzerland) | 2010-07-11 | Fireball, Sphere, Star-like | Undisclosed |
| Lausanne, Vaud (Switzerland) | 2009-05-07 | Other | 00:00:01 |
| Lausanne, Vaud (Switzerland) | 2009-05-07 | Other | 00:00:00 |
| Romont (Switzerland) | 2009-05-06 | Triangle | unknown |
| Thoiry (France) | 2009-02-13 | Circle | 30 seconds |
| Geneva, Geneva (Switzerland) | 2008-12-07 | Circle, Fireball, Flash, Sphere, Other | Undisclosed |
| Lausanne (Switzerland) | 2007-06-22 | Sphere | Unknown |
| Geneva (Switzerland) | 2006-07-22 | Sphere | 20 min |
| Flamatt (Switzerland) | 2003-08-12 | Light | 3 - 4 seconds |
| Flamatt (Switzerland) | 2003-08-10 | Light | 4 seconds |
| Berne (Switzerland) | 2002-09-14 | Rectangle | 1 Minute |
| Köniz (Switzerland) | 2001-03-18 | Circle | 50sec |
| Lausanne (Switzerland) | 1997-08-16 | Disc | 00:10:00 |
| Chancy, Genève (Switzerland) | 1997-03-08 | N, A | 00:01:00 |
| Chamonix, Auvergne-Rhône-Alpes (France) | 1995-12-01 | Cylinder | 00:00:05 |
| Thoiry (France) | 1990-07-15 | Unknown | 30 seconds |
| Cessy (France) | 1988-03-11 | Other | |
| Geneva, Geneva (Switzerland) | 1967-06-12 | Fireball | Undisclosed |
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