Yes, Aurora uses an SMA-RP (Reverse Polarity) connector to allow for other external antennas.
For example, when no good position for Aurora can be found, the external antenna can be placed at a different position.
Make sure to use an 868 MHz (Europe) / 915 MHz (US) antenna with an SMA-RP connector, e.g. https://www.digikey.ch/en/products/detail/linx-technologies-inc/ANT-868-MHW-SMA-S/11570479 or https://www.distrelec.ch/en/ism-dsrc-hinged-external-antenna-dbi-male-sma-rp-196mm-screw-molex-2161960011/p/30238354 with a suitable adapter, e.g. https://www.digikey.ch/en/products/detail/linx-technologies-inc/ADP-RPSM-SMAF-G/9826664
Please make sure that the device itself has a good sky view for good reception with the internal GPS antenna.