Final answer:
The scientist should email her team about the discovery and prepare a manuscript for submission to a peer-reviewed scientific journal for wider dissemination and validation by the scientific community.
Step-by-step explanation:
When a scientist makes a new discovery, the fastest and safest way for her to share the news with her team would be through a professional and secure communication channel that all team members have access to, such as email or a collaborative platform like a private group chat or a project management tool. However, for the discovery to be credibly recognized and disseminated to the wider scientific community, the peer-review process is integral. She should prepare a manuscript detailing her findings and submit it to a reputable scientific journal. This paper will be scrutinized by other experts in her field who will provide feedback and determine whether the work is suitable for publication, thereby ensuring its accuracy, significance, and reliability.