Regarding those alien races that suddenly appeared on Jupiter, Fang Zheng also doesn't plan on taking any action for now, or leaking this intelligence to the Earth Federation.
After all, meals must be eaten bite by bite, and everything must progress step by step. The Earth Federation hasn't yet recovered from the devastating blow by the Reapers. To then unveil an alien invasion, even the Federation elite would be lining up to jump off buildings.
Therefore, Fang Zheng plans to keep this news under wraps until the Earth Federation has some capability to fight back, and then discuss this issue with them.
However, Fang Zheng is comforted by the fact that after the war with the Reapers, humanity in this world has finally started to prioritize military preparedness and begun researching more powerful weapons.
During his leisure time, Fang Zheng also took some time to hack into the Earth Federation's weapons database, gaining some understanding of their upcoming weapons research.