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Yes. Campus 10 space has been extended to Azure via an ExpressRoute connection.

Authorization and Authentication

Can I use an Active Directory security group to grant permissions to my Azure subscription and/or resources?

Yes! You can use any combination of individual netIDs and/or security groups to meet your need.

I'm working with a researcher at another institution, can I invite them to my Azure subscription to collaborate?

You can as long as they have a Microsoft account. Any person from an institution that is using O365 will have a Microsoft account. Additionally, even personal Microsoft accounts can be invited. You can scope their access as appropriate from the subscription as a whole even down to the individual resource level.